遠端 Ubuntu 18.04 LTS 主機上安裝的一個套件受到 USN-4440-1 公告中所提及的多個弱點影響。

  - 在 Linux 核心 5.2.13 及之前版本中發現一個問題。drivers/block/nbd.c 中的 nbd_genl_status 未檢查 nla_nest_start_noflag 傳回值。(CVE-2019-16089)

  - 在 Linux 核心 5.4.1 及之前版本中，kernel/relay.c 的 relay_open 允許本機使用者觸發一個NULL alloc_percpu 結果，進而造成拒絕服務 (如轉送堵塞)。(CVE-2019-19462)

  - 在 5.6 版之前的 Linux 核心中，drivers/media/usb/go7007/snd-go7007.c 的 go7007_snd_init 未針對失敗路徑呼叫 snd_card_free，進而造成記憶體洩漏，此弱點亦稱 CID-9453264ef586。(CVE-2019-20810)

  在 5.4 版之前的 Linux 核心的 drivers/firmware/efi/efi.c 中發現一個問題。攻擊者可以使用 efivar_ssdt ACPI 變數的錯誤存取權限繞過鎖定或安全開機限制，亦稱 CID-1957a85b0032。(CVE-2019-20908)

  - 在 Linux 核心的使用者空間核心傾印實作中發現一個瑕疵。此瑕疵可讓擁有本機帳戶的攻擊者損毀簡單的程式，並洩漏私人核心資料。
    (CVE-2020-10732)

  - 在 Linux 核心 4.5-rc1 之後的版本中，mremap 處理 DAX Huge Pages 的方式中發現一個缺陷。
    此瑕疵允許對啟用 DAX 的儲存空間具有存取權的本機攻擊者提升其系統權限。(CVE-2020-10757)

  - 在 5.8-rc1 之前的 Linux 核心 SSBD 實作中發現一個邏輯錯誤缺陷。邏輯處理中有一個錯誤，允許擁有本機帳戶的攻擊者在有其他推測性執行緩解措施的情況下於內容切換期間停用 SSBD 保護機制。此問題是在現有 SSBD 交換的基礎上，新增每個工作/處理程序的條件 STIPB 交換時引入的。此弱點對機密性的威脅最大。(CVE-2020-10766)

  - 在 Linux 核心 5.8-rc1 之前版本的 Enhanced IBPB (Indirect Branch Prediction Barrier) 實作中發現一個瑕疵。當無法使用 STIBP 或可使用增強型間接分支限制推測 (IBRS)時，將停用 IBPB 緩解措施。此瑕疵允許本機攻擊者在此組態啟用的情況下發動 Spectre V2 樣式攻擊。此弱點對機密性的威脅最大。(CVE-2020-10767)

  在 5.8-rc1之前的 Linux 核心的 prctl() 函式中發現一個瑕疵，即此函式停用後仍可被用來啟用間接分支推測。此呼叫會在並未強制停用時誤報「已強制停用」，從而令系統容易遭受 Spectre v2 攻擊。此弱點對機密性的威脅最大。(CVE-2020-10768)

  - 據發現，aufs 未正確管理 vfsub_dentry_open() 方法中的 inode 參照計數。本機攻擊者可利用此弱點造成拒絕服務攻擊。(CVE-2020-11935)

  - 在 Linux 核心 4.4 至 5.7.1 版本中發現一個問題。如果連續多次呼叫 k_ascii，drivers/tty/vt/keyboard.c 中會發生整數溢位，亦即 CID-b86dab054059。注意：社群成員認為，在此情況下，整數溢位不會導致安全性問題。(CVE-2020-13974)

  - 在 5.7.7 版之前的 Linux 核心的 drivers/acpi/acpi_configfs.c 中發現一個問題。攻擊者可利用透過 configfs 插入的惡意 ACPI 表格來繞過鎖定及安全開機限制，亦稱 CID-75b0cea7bf30。(CVE-2020-15780)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

遠端 Redhat Enterprise Linux 7 主機上安裝的套件受到 RHSA-2020: 4062 公告中所提及的多個弱點影響。

  - 核心：drivers/i2c/i2c-core-smbus.c 的 i2c_smbus_xfer_emulated 函式中存在超出邊界寫入問題 (CVE-2017-18551)

  - 核心：在 drivers/scsi/libsas/sas_expander.c 中，smp_task_timedout () 和 smp_task_done() 的爭用情形會導致釋放後使用 (CVE-2018-20836)

  - 核心：drivers/media/usb/zr364xx/zr364xx.c 驅動程式中的 null 指標解除參照問題 (CVE-2019-15217)

  - 核心：drivers/scsi/libsas/sas_expander.c 中的記憶體洩漏問題 (CVE-2019-15807)

  - 核心：drivers/bluetooth/hci_ldisc.c 中的釋放後使用問題 (CVE-2019-15917)

  - 核心：drivers/net/fjes/fjes_main.c 中的 null 指標解除參照問題 (CVE-2019-16231)

  - 核心：drivers/scsi/qla2xxx/qla_os.c 中的 null 指標解除參照問題 (CVE-2019-16233)

  - 核心：sit_init_net() in net/ipv6/sit.c 中的記憶體洩漏問題 (CVE-2019-16994)

  - 核心：無權限使用者可在 AF_IEEE802154 網路通訊協定中建立 RAW 通訊端 (CVE-2019-17053)

  - 核心：無權限的使用者可在 AF_ISDN 網路通訊協定中建立 RAW 通訊端 (CVE-2019-17055)

  - 核心：drivers/crypto/ccp/ccp-ops.c 的 ccp_run_sha_cmd() 函式中存在記憶體洩漏問題 (CVE-2019-18808)

  - 核心：drivers/char/ipmi/ipmi_msghandler.c 的 __ipmi_bmc_register() 函式中存在拒絕服務問題 (CVE-2019-19046)

  - 核心：net/wireless/nl80211.c 的 nl80211_get_ftm_responder_stats() 函式中存在記憶體洩漏問題，會導致 DoS (CVE-2019-19055)

  - 核心：drivers/net/wireless/intel/iwlwifi/fw/dbg.c 的 alloc_sgtable() 函式中存在記憶體洩漏問題，會導致 DoS (CVE-2019-19058)

  - 核心：drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c 的iwl_pcie_ctxt_info_gen_gen3_init() 函式中存在多個記憶體洩漏問題，會導致 DoS (CVE-2019-19059)

  - 核心：crypto/crypto_user_base.c 的 crypto_report() 函式中存在記憶體洩漏問題，可導致 DoS (CVE-2019-19062)

  - 核心：drivers/net/wireless/realtek/rtlwifi/usb.c 的 rtl_usb_probe() 函式中有兩個記憶體洩漏問題，會導致 DoS (CVE-2019-19063)

  - 核心：kvm：透過 kvm_dev_ioctl_get_cpuid 造成 OOB 記憶體寫入 (CVE-2019-19332)

  - 核心：掛載特別構建的 ext4 檔案系統映像、執行某些操作和卸載，可導致在 fs/ext4/super.c 的 ext4_put_super 中發生釋放後使用 (CVE-2019-19447)

  - 核心：惡意 USB 裝置可在 drivers/usb/misc/adutux.c 驅動程式中造成釋放後使用 (CVE-2019-19523)

  - 核心：drivers/input/ff-memless.c 中的惡意 USB 裝置可導致釋放後使用 (CVE-2019-19524)

  - 核心：drivers/usb/class/cdc-acm.c 驅動程式中的惡意 USB 裝置造成釋放後使用 (CVE-2019-19530)

  - 核心：由 drivers/net/can/usb/peak_usb/pcan_usb_core.c 驅動程式中的惡意 USB 裝置造成的資訊洩漏錯誤 (CVE-2019-19534)

  - 核心：USB 字元裝置驅動程式層中的惡意 USB 裝置會造成爭用情形 (CVE-2019-19537)

  - 核心：__ext4_expand_extra_isize 和 ext4_xattr_set_entry 中與 fs/ext4 inode.c 和 fs/ext4/super.c 相關的釋放後使用問題 (CVE-2019-19767)

  - 核心：sound/core/timer.c 中存在釋放後使用問題 (CVE-2019-19807)

  - 核心：在 fs/proc/proc_sysctl.c 的 drop_sysctl_table() 中發生 NULL 指標解除參照 (CVE-2019-20054)

  - 核心：drivers/net/wireless/marvell/mwifiex/cfg80211.c 的 mwifiex_tm_cmd 中存在記憶體洩漏 (CVE-2019-20095)

  - 核心：透過特製的鍵碼表造成超出邊界寫入問題 (CVE-2019-20636)

  - 核心：i2c 驅動程式中的超出邊界寫入會導致本機權限提升 (CVE-2019-9454)

  - 核心：視訊驅動程式中的爭用情形造成釋放後使用，進而導致本機權限提升 (CVE-2019-9458)

  - 核心：在 PTP 裝置的 chardev 開啟時移除該裝置，導致 cdev_put() 中出現釋放後使用 (CVE-2020-10690)

  - 核心：使用者空間 coredump 中的未初始化核心資料洩漏 (CVE-2020-10732)

  - 核心：由於 Direct IO 寫入期間索引緩衝區溢位導致核心錯誤，進而造成 NFS 用戶端當機 (CVE-2020-10742)

  - 核心：繞過 SELinux netlink 權限檢查 (CVE-2020-10751)

  - 核心：vhost_net：在檢查 sk_family 欄位時，get_raw_socket 中發生堆疊溢位 (CVE-2020-10942)

  - 核心：mm/mempolicy.c 的 mpol_parse_str 函式中有超出邊界寫入問題 (CVE-2020-11565)

  - 核心：sg_write 函式在特定失敗案例中缺少 sg_remove_request 呼叫 (CVE-2020-12770)

  - 核心：可能會傳送任意訊號至有權限的 (suidroot) 父處理程序 (CVE-2020-12826)

  - 核心：Voice over IP nf_conntrack_h323 模組中的記憶體損毀 (CVE-2020-14305)

  - 核心：部分 ipv6 通訊協定未透過 ipsec 通道加密 (CVE-2020-1749)

  - 核心：kvm：nVMX：L2 客體可能誘使 L0 Hypervisor 存取 L1 敏感資源 (CVE-2020-2732)

  - 核心：drivers/tty/vt/vt.c 的 vc_do_resize 函式中有超出邊界讀取問題 (CVE-2020-8647)

  - 核心：drivers/video/console/vgacon.c 的 vgacon_invert_region 函式中有無效讀取位置 (CVE-2020-8649)

  - 核心：drivers/block/floppy.c 的 set_fdc 中存在超出邊界讀取 (CVE-2020-9383)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

遠端 Ubuntu 20.04 LTS 主機上安裝的一個套件受到 USN-4411-1 公告中所提及的多個弱點影響。

  - 在 Linux 核心 5.7 版本之前的 SELinux 子系統中發現 NULL 指標解除參照缺陷。
    此缺陷會在透過「ebitmap_netlbl_import」常式將商業 IP 安全性選項 (CIPSO) 通訊協定的類別點陣圖匯入 SELinux 可延伸點陣圖時發生。在處理「cipso_v4_parsetag_rbm」常式中的 CIPSO 受限點陣圖標籤時，其會設定安全性屬性以指示類別點陣圖存在，即使尚未配置也是如此。將相同類別的點陣圖匯入 SELinux 時，此問題會導致 NULL 指標解除參照問題。遠端網路使用者可利用此缺陷損毀系統核心，進而導致拒絕服務。(CVE-2020-10711)

  - 在 Linux 核心的使用者空間核心傾印實作中發現一個瑕疵。此瑕疵可讓擁有本機帳戶的攻擊者損毀簡單的程式，並洩漏私人核心資料。
    (CVE-2020-10732)

  - 在 5.6 之前的 Linux 核心中發現一個問題。arch/x86/kvm/svm.c 的 svm_cpu_uninit 中存在記憶體流失問題，亦稱 CID-d80b64ff297e。注意：第三方對此問題存有爭議，因為這是開機時的一次性流失，大小可忽略不計，且無法任意觸發 (CVE-2020-12768)

  - 在 Linux 核心 5.6.11 及之前的版本中發現一個問題，在特定的失敗案例中，sg_write 缺少 sg_remove_request 呼叫，即 CID-83c6f2390040。(CVE-2020-12770)

  - 在 Linux 核心 3.16 到 5.6.13 中，drivers/usb/gadget/configfs.c 中的 gadget_dev_desc_UDC_store 仰賴 kstrdup，而未考慮內部「\0」值的可能性，攻擊者可藉此觸發超出邊界讀取，即 CID-15753588bcd4。(CVE-2020-13143)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4485-1 advisory.

    Timothy Michaud discovered that the i915 graphics driver in the Linux kernel did not properly validate     user memory locations for the i915_gem_execbuffer2_ioctl. A local attacker could possibly use this to     cause a denial of service or execute arbitrary code. (CVE-2018-20669)

    It was discovered that the Kvaser CAN/USB driver in the Linux kernel did not properly initialize memory in     certain situations. A local attacker could possibly use this to expose sensitive information (kernel     memory). (CVE-2019-19947)

    Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly     deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a     denial of service (memory exhaustion). (CVE-2019-20810)

    It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it     in certain situations. A local attacker could use this to possibly expose sensitive information (kernel     memory). (CVE-2020-10732)

    It was discovered that the Linux kernel did not correctly apply Speculative Store Bypass Disable (SSBD)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10766)

    It was discovered that the Linux kernel did not correctly apply Indirect Branch Predictor Barrier (IBPB)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10767)

    It was discovered that the Linux kernel could incorrectly enable Indirect Branch Speculation after it has     been disabled for a process via a prctl() call. A local attacker could possibly use this to expose     sensitive information. (CVE-2020-10768)

    Luca Bruno discovered that the zram module in the Linux kernel did not properly restrict unprivileged     users from accessing the hot_add sysfs file. A local attacker could use this to cause a denial of service     (memory exhaustion). (CVE-2020-10781)

    It was discovered that the XFS file system implementation in the Linux kernel did not properly validate     meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when     mounted, could cause a denial of service. (CVE-2020-12655)

    It was discovered that the bcache subsystem in the Linux kernel did not properly release a lock in some     error conditions. A local attacker could possibly use this to cause a denial of service. (CVE-2020-12771)

    It was discovered that the Virtual Terminal keyboard driver in the Linux kernel contained an integer     overflow. A local attacker could possibly use this to have an unspecified impact. (CVE-2020-13974)

    Kyungtae Kim discovered that the USB testing driver in the Linux kernel did not properly deallocate memory     on disconnect events. A physically proximate attacker could use this to cause a denial of service (memory     exhaustion). (CVE-2020-15393)

    It was discovered that the NFS server implementation in the Linux kernel did not properly honor umask     settings when setting permissions while creating file system objects if the underlying file system did not     support ACLs. An attacker could possibly use this to expose sensitive information or violate system     integrity. (CVE-2020-24394)

    It was discovered that the Kerberos SUNRPC GSS implementation in the Linux kernel did not properly     deallocate memory on module unload. A local privileged attacker could possibly use this to cause a denial     of service (memory exhaustion). (CVE-2020-12656)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):A flaw was found in the     Linux kernel's implementation of the invert video code     on VGA consoles when a local attacker attempts to     resize the console, calling an ioctl VT_RESIZE, which     causes an out-of-bounds write to occur. This flaw     allows a local user with access to the VGA console to     crash the system, potentially escalating their     privileges on the system. The highest threat from this     vulnerability is to data confidentiality and integrity     as well as system availability.(CVE-2020-14331)A flaw     was found in the HDLC_PPP module of the Linux kernel in     versions before 5.9-rc7. Memory corruption and a read     overflow is caused by improper input validation in the     ppp_cp_parse_cr function which can cause the system to     crash or cause a denial of service. The highest threat     from this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-25643)A memory out-of-bounds     read flaw was found in the Linux kernel before 5.9-rc2     with the ext3/ext4 file system, in the way it accesses     a directory with broken indexing. This flaw allows a     local user to crash the system if the directory exists.
    The highest threat from this vulnerability is to system     availability.(CVE-2020-14314)A TOCTOU mismatch in the     NFS client code in the Linux kernel before 5.8.3 could     be used by local attackers to corrupt memory or     possibly have unspecified other impact because a size     check is in fs/ nfs/ nfs4proc.c instead of fs/ nfs/     nfs4xdr.c, aka CID-b4487b935452.(CVE-2020-25212)The rbd     block device driver in drivers/block/rbd.c in the Linux     kernel through 5.8.9 used incomplete permission     checking for access to rbd devices, which could be     leveraged by local attackers to map or unmap rbd block     devices, aka CID-f44d04e696fe.(CVE-2020-25284)A race     condition between hugetlb sysctl handlers in     mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL     pointer dereference, or possibly have unspecified other     impact, aka CID-17743798d812.(CVE-2020-25285)A flaw was     found in the Linux kernel before 5.9-rc4. Memory     corruption can be exploited to gain root privileges     from unprivileged processes. The highest threat from     this vulnerability is to data confidentiality and     integrity.(CVE-2020-14386)In the Linux kernel through     5.8.7, local attackers able to inject conntrack netlink     configuration could overflow a local buffer, causing     crashes or triggering use of incorrect protocol numbers     in ctnetlink_parse_tuple_filter in net/ netfilter/     nf_conntrack_netlink.c, aka     CID-1cc5ef91d2ff.(CVE-2020-25211)The VFIO PCI driver in     the Linux kernel through 5.6.13 mishandles attempts to     access disabled memory space.(CVE-2020-12888)The kernel     in Red Hat Enterprise Linux 7 and MRG-2 does not clear     garbage data for SG_IO buffer, which may leaking     sensitive information to userspace.(CVE-2014-8181)A     flaw was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further     processing.(CVE-2020-10751)The Linux kernel through     5.7.11 allows remote attackers to make observations     that help to obtain sensitive information about the     internal state of the network RNG, aka     CID-f227e3ec3b5c. This is related to     drivers/char/random.c and     kernel/time/timer.c.(CVE-2020-16166)A buffer over-read     flaw was found in RH kernel versions before 5.0 in     crypto_authenc_extractkeys in crypto/authenc.c in the     IPsec Cryptographic algorithm's module, authenc. When a     payload longer than 4 bytes, and is not following     4-byte alignment boundary guidelines, it causes a     buffer over-read threat, leading to a system crash.
    This flaw allows a local attacker with user privileges     to cause a denial of service.(CVE-2020-10769)In the     Linux kernel through 5.7.6, usbtest_disconnect in     drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)An issue was     discovered in the Linux kernel through 5.7.1.
    drivers/tty/vt/keyboard.c has an integer overflow if     k_ascii is called several times in a row, aka     CID-b86dab054059.(CVE-2020-13974)go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)An issue was     discovered in the Linux kernel before 5.0.6. In     rx_queue_add_kobject() and netdev_queue_add_kobject()     in net/core/ net-sysfs.c, a reference count is     mishandled, aka CID-a3e23f719f5c.(CVE-2019-20811)An     issue was discovered in the Linux kernel before 5.4.7.
    The prb_calc_retire_blk_tmo() function in     net/packet/af_packet.c can result in a denial of     service (CPU consumption and soft lockup) in a certain     failure case involving TPACKET_V3, aka     CID-b43d1f9f7067.(CVE-2019-20812)A flaw was found in     the Linux kernel's implementation of Userspace core     dumps. This flaw allows an attacker with a local     account to crash a trivial program and exfiltrate     private kernel data.(CVE-2020-10732)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in the Linux kernel before 5.2.3. An out of bounds access exists in the function     hclge_tm_schd_mode_vnet_base_cfg in the file drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c.
    (CVE-2019-15925)

  - A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel     through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
    (CVE-2019-18808)

  - ** DISPUTED ** A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by     triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of     this because an attacker cannot realistically control this failure at probe time. (CVE-2019-19046)

  - In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a     slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when     a large old_size value is used in a memset call, aka CID-345c0dbf3a30. (CVE-2019-19319)

  - An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way     the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID     features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use     this flaw to crash the system, resulting in a denial of service. (CVE-2019-19332)

  - In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9. (CVE-2019-19524)

  - In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB     device in the USB character device driver layer, aka CID-303911cfc5b9. This affects     drivers/usb/core/file.c. (CVE-2019-19537)

  - In the Linux kernel before 5.1.6, there is a use-after-free in serial_ir_init_module() in     drivers/media/rc/serial_ir.c. (CVE-2019-19543)

  - In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode     table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7. (CVE-2019-20636)

  - In the Android kernel in the video driver there is a use after free due to a race condition. This could     lead to local escalation of privilege with no additional execution privileges needed. User interaction is     not needed for exploitation. (CVE-2019-9458)

  - A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an     attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

  - A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it     incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly     only validate the first netlink message in the skb and allow or deny the rest of the messages within the     skb with the granted permission without further processing. (CVE-2020-10751)

  - ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,     aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability     because the issue is a bug in parsing mount options which can only be specified by a privileged user, so     triggering the bug does not grant any powers not already held.. (CVE-2020-11565)

  - In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB     driver) mishandles invalid descriptors, aka CID-a246b4d54770. (CVE-2020-11668)

  - Improper input validation in BlueZ may allow an unauthenticated user to potentially enable escalation of     privilege via adjacent access. (CVE-2020-12351)

  - Improper access control in BlueZ may allow an unauthenticated user to potentially enable information     disclosure via adjacent access. (CVE-2020-12352)

  - An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-     of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
    (CVE-2020-12659)

  - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)

  - A flaw was found in the Linux kernels implementation of the invert video code on VGA consoles when a     local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds     write to occur. This flaw allows a local user with access to the VGA console to crash the system,     potentially escalating their privileges on the system. The highest threat from this vulnerability is to     data confidentiality and integrity as well as system availability. (CVE-2020-14331)

  - A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root     privileges from unprivileged processes. The highest threat from this vulnerability is to data     confidentiality and integrity. (CVE-2020-14386)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in     drivers/tty/vt/vt.c. (CVE-2020-8647)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common     function in drivers/tty/n_tty.c. (CVE-2020-8648)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region     function in drivers/video/console/vgacon.c. (CVE-2020-8649)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has kernel packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in drivers/i2c/i2c-core-smbus.c in the Linux kernel before 4.14.15. There is an     out of bounds write in the function i2c_smbus_xfer_emulated. (CVE-2017-18551)

  - An issue was discovered in the Linux kernel before 5.0.5. There is a use-after-free issue when     hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c. (CVE-2019-15917)

  - base_sock_create in drivers/isdn/mISDN/socket.c in the AF_ISDN network module in the Linux kernel through     5.3.2 does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka     CID-b91ee4aa2a21. (CVE-2019-17055)

  - A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel     through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
    (CVE-2019-18808)

  - ** DISPUTED ** A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by     triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of     this because an attacker cannot realistically control this failure at probe time. (CVE-2019-19046)

  - ** DISPUTED ** A memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c     in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by     triggering nl80211hdr_put() failures, aka CID-1399c59fa929. NOTE: third parties dispute the relevance of     this because it occurs on a code path where a successful allocation has already occurred. (CVE-2019-19055)

  - An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way     the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID     features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use     this flaw to crash the system, resulting in a denial of service. (CVE-2019-19332)

  - In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79. (CVE-2019-19523)

  - In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9. (CVE-2019-19524)

  - In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef. (CVE-2019-19530)

  - In the Linux kernel before 5.3.11, there is an info-leak bug that can be caused by a malicious USB device     in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver, aka CID-f7a1337f0d29. (CVE-2019-19534)

  - In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB     device in the USB character device driver layer, aka CID-303911cfc5b9. This affects     drivers/usb/core/file.c. (CVE-2019-19537)

  - In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code     refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The     timeri variable was originally intended to be for a newly created timer instance, but was used for a     different purpose after refactoring. (CVE-2019-19807)

  - In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode     table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7. (CVE-2019-20636)

  - In the Android kernel in i2c driver there is a possible out of bounds write due to memory corruption. This     could lead to local escalation of privilege with System execution privileges needed. User interaction is     not needed for exploitation. (CVE-2019-9454)

  - In the Android kernel in the video driver there is a use after free due to a race condition. This could     lead to local escalation of privilege with no additional execution privileges needed. User interaction is     not needed for exploitation. (CVE-2019-9458)

  - A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an     attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

  - A flaw was found in the Linux kernel. An index buffer overflow during Direct IO write leading to the NFS     client to crash. In some cases, a reach out of the index after one memory allocation by kmalloc will cause     a kernel panic. The highest threat from this vulnerability is to data confidentiality and system     availability. (CVE-2020-10742)

  - A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it     incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly     only validate the first netlink message in the skb and allow or deny the rest of the messages within the     skb with the granted permission without further processing. (CVE-2020-10751)

  - ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,     aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability     because the issue is a bug in parsing mount options which can only be specified by a privileged user, so     triggering the bug does not grant any powers not already held.. (CVE-2020-11565)

  - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)

  - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection     tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote     user to crash the system, causing a denial of service. The highest threat from this vulnerability is to     confidentiality, integrity, as well as system availability. (CVE-2020-14305)

  - A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers     to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c     instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452. (CVE-2020-25212)

  - The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete     permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap     rbd block devices, aka CID-f44d04e696fe. (CVE-2020-25284)

  - A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest     when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into     accessing sensitive L1 resources that should be inaccessible to the L2 guest. (CVE-2020-2732)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in     drivers/tty/vt/vt.c. (CVE-2020-8647)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region     function in drivers/video/console/vgacon.c. (CVE-2020-8649)

  - An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to     a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it,     aka CID-2e90ca68b0d2. (CVE-2020-9383)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 4.14.186-110.268. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1401 advisory.

    An issue where a provided address with access_ok() is not checked was discovered in     i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through     4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory,     resulting in a Denial of Service or privilege escalation. (CVE-2018-20669)

    A flaw was found in the prctl() function, where it can be used to enable indirect branch speculation after     it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens     the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.
    (CVE-2020-10768)

    A new domain bypass transient execution attack known as Special Register Buffer Data Sampling (SRBDS) has     been found. This flaw allows data values from special internal registers to be leaked by an attacker able     to execute code on any core of the CPU. An unprivileged, local attacker can use this flaw to infer values     returned by affected instructions known to be commonly used during cryptographic operations that rely on     uniqueness, secrecy, or both. Incomplete cleanup from specific special register read operations in some     Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local     access. (CVE-2020-0543)

    relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of     service (such as relay blockage) by triggering a NULL alloc_percpu result. (CVE-2019-19462)

    A logic bug flaw was found in the Linux kernel's implementation of SSBD. A bug in the logic handling     allows an attacker with a local account to disable SSBD protection during a context switch when additional     speculative execution mitigations are in place. This issue was introduced when the per task/process     conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this     vulnerability is to confidentiality. (CVE-2019-19462)

    A flaw was found in the Linux kernel's implementation of the Enhanced IBPB (Indirect Branch Prediction     Barrier). The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect     Branch Restricted Speculation (IBRS) is available. This flaw allows a local attacker to perform a Spectre     V2 style attack when this configuration is active. The highest threat from this vulnerability is to     confidentiality. (CVE-2019-19462)

    An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c     has a deadlock if a coalescing operation fails. (CVE-2020-12771)

    A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an     attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

    A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages.
    This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the     system. (CVE-2020-10757)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5804 advisory.

    - fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() (Alexander Potapenko)  [Orabug:
    31350638]  {CVE-2020-10732}
    - net-sysfs: call dev_hold if kobject_init_and_add success (YueHaibing)  [Orabug: 31445419]     {CVE-2019-20811}
    - vfio-pci: protect remap_pfn_range() from simultaneous calls (Ankur Arora)  [Orabug: 31663632]     {CVE-2020-12888} {CVE-2020-12888}
    - crypto: user - fix memory leak in crypto_report (Navid Emamdoost)  [Orabug: 31351639]  {CVE-2019-19062}
    - iwlwifi: pcie: fix rb_allocator workqueue allocation (Johannes Berg)  [Orabug: 31351807]     {CVE-2019-16234}
    - efi: Restrict efivar_ssdt_load when the kernel is locked down (Matthew Garrett)  [Orabug: 31643409]     {CVE-2019-20908}
    - ext4: fix ext4_empty_dir() for directories with holes (Jan Kara)  [Orabug: 31265319]  {CVE-2019-19037}     {CVE-2019-19037}
    - libertas: fix a potential NULL pointer dereference (Allen Pais)  [Orabug: 31351822]  {CVE-2019-16232}
    - ext4: work around deleting a file with i_nlink == 0 safely (Theodore Tso)  [Orabug: 31351013]     {CVE-2019-19447}
    - x86/speculation: Prevent rogue cross-process SSBD shutdown (Anthony Steinhauser)  [Orabug: 31557902]     {CVE-2020-10768}
    - vfio/pci: Fix SR-IOV VF handling with MMIO blocking (Alex Williamson)  [Orabug: 31439670]     {CVE-2020-12888}
    - vfio/pci: Mask buggy SR-IOV VF INTx support (Alex Williamson)  [Orabug: 31439670]  {CVE-2020-12888}
    - vfio-pci: Invalidate mmaps and block MMIO access on disabled memory (Alex Williamson)  [Orabug:
    31439670]  {CVE-2020-12888} {CVE-2020-12888}
    - vfio/pci: call irq_bypass_unregister_producer() before freeing irq (Jiang Yi)  [Orabug: 31439670]     {CVE-2020-12888}
    - vfio/pci: Pull BAR mapping setup from read-write path (Alex Williamson)  [Orabug: 31439670]     {CVE-2020-12888}
    - vfio_pci: Enable memory accesses before calling pci_map_rom (Eric Auger)  [Orabug: 31439670]     {CVE-2020-12888}
    - vfio-pci: Fault mmaps to enable vma tracking (Alex Williamson)  [Orabug: 31439670]  {CVE-2020-12888}
    - vfio/type1: Support faulting PFNMAP vmas (Alex Williamson)  [Orabug: 31439670]  {CVE-2020-12888}
    - vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() (Sean Christopherson)  [Orabug:
    31439670]  {CVE-2020-12888}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14442-1 advisory.

  - An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An     attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations     before the required authentication process has completed. This could lead to different denial-of-service     scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already     existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge     Authentication and Association Request packets to trigger this vulnerability. (CVE-2019-5108)

  - In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to     local escalation of privilege with System execution privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android-10Android ID: A-153467744 (CVE-2020-0305)

  - A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an     attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

  - A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in     crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4     bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat,     leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of     service. (CVE-2020-10769)

  - A stack information leak flaw was found in s390/s390x in the Linux kernels memory manager functionality,     where it incorrectly writes to the /proc/sys/vm/cmm_timeout file. This flaw allows a local user to see the     kernel data. (CVE-2020-10773)

  - The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows     local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a     double fetch vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states The security impact of this     bug is not as bad as it could have been because these operations are all privileged and root already has     enormous destructive power. (CVE-2020-12652)

  - ** DISPUTED ** gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5     implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory     leak. Note: This was disputed with the assertion that the issue does not grant any access not already     available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading     kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of     memory they like and load that replicating the effect of this bug. (CVE-2020-12656)

  - An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer     overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community     argue that the integer overflow does not lead to a security issue in this case. (CVE-2020-13974)

  - In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line     discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and     drivers/net/can/slcan.c. (CVE-2020-14416)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).

CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).

CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067 (bnc#1172453).

CVE-2020-10732: A flaw was found in the implementation of userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).

CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-10768: Indirect branch speculation could have been enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).

CVE-2020-10766: Fixed Rogue cross-process SSBD shutdown, where a Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (bnc#1172781).

CVE-2020-10767: Indirect Branch Prediction Barrier was force-disabled when STIBP is unavailable or enhanced IBRS is available.
(bnc#1172782).

CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059.
(bnc#1172775).

CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of AOS installed on the remote host is prior to 5.19.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.19.1 advisory.

  - In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length     checks. In cases where the application calling the library did not perform a sanity check on the inputs it     could result in a crash due to a buffer overflow. (CVE-2019-17006)

  - Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. (CVE-2019-5482)

  - In all versions of cpio before 2.13 does not properly validate input files when generating TAR archives.
    When cpio is used to create TAR archives from paths an attacker can write to, the resulting archive may     contain files with permissions the attacker did not have or in paths he did not have access to. Extracting     those archives from a high-privilege user without carefully reviewing them may lead to the compromise of     the system. (CVE-2019-14866)

  - If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to     8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the     HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP     headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This     could lead to users seeing responses for unexpected resources. (CVE-2020-13943)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported     versions that are affected are 5.6.45 and prior, 5.7.27 and prior and 8.0.17 and prior. Easily exploitable     vulnerability allows low privileged attacker with network access via multiple protocols to compromise     MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang     or frequently repeatable crash (complete DOS) of MySQL Server. (CVE-2019-2974)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 15 kernel was updated receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-9383: Fixed an out-of-bounds read due to improper error condition check of FDC index (bsc#1165111).

CVE-2020-8992: Fixed an issue which could have allowed attackers to cause a soft lockup via a crafted journal size (bsc#1164069).

CVE-2020-8834: Fixed a stack corruption which could have lead to kernel panic (bsc#1168276).

CVE-2020-8649: Fixed a use-after-free in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).

CVE-2020-8648: Fixed a use-after-free in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).

CVE-2020-8647: Fixed a use-after-free in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).

CVE-2020-8428: Fixed a use-after-free which could have allowed local users to cause a denial of service (bsc#1162109).

CVE-2020-7053: Fixed a use-after-free in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bsc#1160966).

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

CVE-2020-11609: Fixed a NULL pointer dereference due to improper handling of descriptors (bsc#1168854).

CVE-2020-11608: Fixed a NULL pointer dereferences via a crafted USB (bsc#1168829).

CVE-2020-11494: Fixed an issue which could have allowed attackers to read uninitialized can_frame data (bsc#1168424).

CVE-2020-10942: Fixed a kernel stack corruption via crafted system calls (bsc#1167629).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9458: Fixed a use after free due to a race condition which could have led to privilege escalation of privilege (bsc#1168295).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bsc#1120386).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20810: Fixed a memory leak in due to not calling of snd_card_free (bsc#1172458).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which could have caused denial of service (bsc#1159908).

CVE-2019-20095: Fixed an improper error-handling cases that did not free allocated hostcmd memory which was causing memory leak (bsc#1159909).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bsc#1159910).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() which could have caused denial of service (bsc#1159841).

CVE-2019-19965: Fixed a NULL pointer dereference, due to mishandling of port disconnection during discovery (bsc#1159911).

CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bsc#1159285).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2019-19447: Fixed a user after free via a crafted ext4 filesystem image (bsc#1158819).

CVE-2019-19319: Fixed a user after free when a large old_size value is used in a memset call (bsc#1158021).

CVE-2019-19318: Fixed a use after free via a crafted btrfs image (bsc#1158026).

CVE-2019-19054: Fixed a memory leak in the cx23888_ir_probe() which could have allowed attackers to cause a denial of service (bsc#1161518).

CVE-2019-19045: Fixed a memory leak in which could have allowed attackers to cause a denial of service (bsc#1161522).

CVE-2019-19036: Fixed a NULL pointer dereference in btrfs_root_node (bsc#1157692).

CVE-2019-16994: Fixed a memory leak which might have caused denial of service (bsc#1161523).

CVE-2019-14897: Fixed a stack overflow in Marvell Wifi Driver (bsc#1157155).

CVE-2019-14896: Fixed a heap overflow in Marvell Wifi Driver (bsc#1157157).

CVE-2019-14615: Fixed an improper control flow in certain data structures which could have led to information disclosure (bsc#1160195).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result (bnc#1158265).

CVE-2019-20810: Fixed a memory leak in go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c because it did not call snd_card_free for a failure path (bnc#1172458).

CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c could result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3 (bnc#1172453).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth&Acirc;&reg; BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem in versions This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine.
This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).

CVE-2020-10732: A flaw was found in the implementation of Userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).

CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).

CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).

CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).

CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).

CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).

CVE-2020-10781: A zram sysfs resource consumption was fixed (bnc#1173074).

CVE-2020-12656: Fixed a memory leak in gss_mech_free in the rpcsec_gss_krb5 implementation, caused by a lack of certain domain_release calls (bnc#1171219).

CVE-2020-12769: An issue was discovered in drivers/spi/spi-dw.c allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bnc#1171983).

CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).

CVE-2020-13143: gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c relies on kstrdup without considering the possibility of an internal '\0' value, which allowed attackers to trigger an out-of-bounds read (bnc#1171982).

CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).

CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free.
This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).

CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名稱	產品	系列	已發布	已更新	嚴重性
139028	Ubuntu 18.04 LTS：Linux 核心弱點 (USN-4440-1)	Nessus	Ubuntu Local Security Checks	2020/7/28	2024/8/27	high
141026	RHEL 7：kernel-rt (RHSA-2020: 4062)	Nessus	Red Hat Local Security Checks	2020/9/29	2024/11/7	high
138136	Ubuntu 20.04 LTS：Linux 核心弱點 (USN-4411-1)	Nessus	Ubuntu Local Security Checks	2020/7/6	2024/8/27	medium
140183	Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4485-1)	Nessus	Ubuntu Local Security Checks	2020/9/2	2024/8/27	high
142240	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-2353)	Nessus	Huawei Local Security Checks	2020/11/3	2024/2/12	high
147318	NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2021-0078)	Nessus	NewStart CGSL Local Security Checks	2021/3/10	2022/5/10	high
154525	NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2021-0169)	Nessus	NewStart CGSL Local Security Checks	2021/10/27	2023/11/27	high
138643	Amazon Linux AMI : kernel (ALAS-2020-1401)	Nessus	Amazon Linux Local Security Checks	2020/7/20	2024/12/11	high
139476	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5804)	Nessus	Oracle Linux Local Security Checks	2020/8/11	2024/11/1	high
150665	SUSE SLES11 Security Update : kernel (SUSE-SU-2020:14442-1)	Nessus	SuSE Local Security Checks	2021/6/10	2023/12/26	high
139364	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2134-1)	Nessus	SuSE Local Security Checks	2020/8/6	2021/1/13	high
137608	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1)	Nessus	SuSE Local Security Checks	2020/6/18	2024/3/6	high
164584	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.19.1)	Nessus	Misc.	2022/9/1	2025/7/22	critical
137616	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1)	Nessus	SuSE Local Security Checks	2020/6/18	2024/3/6	high
138272	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)	Nessus	SuSE Local Security Checks	2020/7/9	2024/3/1	critical
139308	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2105-1)	Nessus	SuSE Local Security Checks	2020/8/4	2022/5/12	high

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