The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4342-1 advisory.

    Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades     for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of     service (system crash) or execute arbitrary code. (CVE-2020-11884)

    It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in     some situations. A local attacker could possibly use this to cause a denial of service (system crash).
    (CVE-2019-16234)

    Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race     condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose     sensitive information. (CVE-2019-19768)

    It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local     attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of     service (system crash). (CVE-2020-10942)

    It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition.
    A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive     information. (CVE-2020-8648)

    Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check     for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when     mounted, could cause a denial of service (soft lockup). (CVE-2020-8992)

    Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in     some situations. A local attacker could possibly use this to cause a denial of service (system crash) or     possibly expose sensitive information. (CVE-2020-9383)

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 Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel 5.4.0-rc2, there is a     use-after-free (read) in the __blk_add_trace function     in kernel/trace/blktrace.c (which is used to fill out a     blk_io_trace structure and place it in a per-cpu     sub-buffer).(CVE-2019-19768)

  - The Linux kernel through 5.3.13 has a start_offset+size     Integer Overflow in cpia2_remap_buffer in     drivers/media/usb/cpia2/cpia2_core.c because cpia2 has     its own mmap implementation. This allows local users     (with /dev/video0 access) to obtain read and write     permissions on kernel physical pages, which can     possibly result in a privilege     escalation.(CVE-2019-18675)

  - An issue was discovered in the Linux kernel 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)

  - 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)

  - 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)

  - The time subsystem in the Linux kernel, when     CONFIG_TIMER_STATS is enabled, allows local users to     discover real PID values (as distinguished from PID     values inside a PID namespace) by reading the     /proc/timer_list file, related to the print_timer     function in kernel/time/timer_list.c and the
    __timer_stats_timer_set_start_info function in     kernel/time/timer.c.(CVE-2017-5967)

  - ** RESERVED ** This candidate has been reserved by an     organization or individual that will use it when     announcing a new security problem. When the candidate     has been publicized, the details for this candidate     will be provided.(CVE-2014-8181)

  - ext4_protect_reserved_inode in fs/ext4/block_validity.c     in the Linux kernel through 5.5.3 allows attackers to     cause a denial of service (soft lockup) via a crafted     journal size.(CVE-2020-8992)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER.
    ConsultIDs: CVE-2020-12826. Reason: This candidate is a     duplicate of CVE-2020-12826. Notes: All CVE users     should reference CVE-2020-12826 instead of this     candidate. All references and descriptions in this     candidate have been removed to prevent accidental     usage.(CVE-2020-10741)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - 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 issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - usb_sg_cancel in drivers/usb/core/message.c in the     Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka     CID-056ad39ee925.(CVE-2020-12464)

  - 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)

  - 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)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - ** 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 5.4.12,     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 Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

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

The following security bugs were fixed :

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).

CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19767: There were multiple use-after-free errors in
__ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).

CVE-2019-19927: A slab-out-of-bounds read access occured when mounting a crafted f2fs filesystem image and performing some operations on it (bnc#1160147).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).

CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).

CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).

CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).

CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
136085	Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4342-1)	Nessus	Ubuntu Local Security Checks	2020/4/29	2024/8/27	high
137932	EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2020-1713)	Nessus	Huawei Local Security Checks	2020/7/1	2024/3/5	high
134292	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0580-1)	Nessus	SuSE Local Security Checks	2020/3/6	2024/3/25	critical
138272	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)	Nessus	SuSE Local Security Checks	2020/7/9	2024/3/1	critical

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