The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:1890-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could     be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
    - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an     arbitrary values. (bsc#1186111)
    - CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other     clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
    - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their     privileges. (bnc#1186060)
    - CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the     PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
    - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
    - CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after     (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network     packets and/or exfiltrate user data (bnc#1185859).
    - CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same     key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames     and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
    - CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of     them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected     fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality     protocol is used (bnc#1185859).
    - CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is     authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of     802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
    - CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2,     and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and     process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets     independent of the network configuration. (bnc#1185860)
    - CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity     Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and     possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol.
    (bnc#1185987)


Tenable has extracted the preceding description block directly from the SUSE 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 SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:1888-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could     be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
    - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an     arbitrary values. (bsc#1186111)
    - CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other     clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
    - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their     privileges. (bnc#1186060)
    - CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the     PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
    - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
    - CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after     (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network     packets and/or exfiltrate user data (bnc#1185859).
    - CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same     key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames     and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
    - CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of     them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected     fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality     protocol is used (bnc#1185859).
    - CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2,     and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and     process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets     independent of the network configuration. (bnc#1185860)
    - CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity     Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and     possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol.
    (bnc#1185987)
    - CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is     authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of     802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)


Tenable has extracted the preceding description block directly from the SUSE 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 Windows host is missing security updates. It is, therefore, affected by multiple vulnerabilities: 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 5.4.129-62.227. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-004 advisory.

    A flaw was found in the Linux kernels implementation of wifi fragmentation handling. An attacker with the     ability to transmit within the wireless transmission range of an access point can abuse a flaw where     previous contents of wifi fragments can be unintentionally transmitted to another device. (CVE-2020-24586)

    A flaw was found in the Linux kernel's WiFi implementation. An attacker within the wireless range can     abuse a logic flaw in the WiFi implementation by reassembling packets from multiple fragments under     different keys, treating them as valid. This flaw allows an attacker to send a fragment under an incorrect     key, treating them as a valid fragment under the new key. The highest threat from this vulnerability is to     confidentiality. (CVE-2020-24587)

    A flaw was found in the Linux kernels wifi implementation. An attacker within wireless broadcast range can     inject custom data into the wireless communication circumventing checks on the data.  This can cause the     frame to pass checks and be considered a valid frame of a different type. (CVE-2020-24588)

    Frames used for authentication and key management between the AP and connected clients.  Some clients may     take these redirected frames masquerading as control mechanisms from the AP. (CVE-2020-26139)

    A vulnerability was found in Linux kernel's WiFi implementation.  An attacker within wireless range can     inject a control packet fragment where the kernel does not verify the Message Integrity Check     (authenticity) of fragmented TKIP frames. (CVE-2020-26141)

    A flaw was found in ath10k_htt_rx_proc_rx_frag_ind_hl in drivers/net/wireless/ath/ath10k/htt_rx.c in the     Linux kernel WiFi implementations, where it accepts a second (or subsequent) broadcast fragments even when     sent in plaintext and then process them as full unfragmented frames. The highest threat from this     vulnerability is to integrity. (CVE-2020-26145)

    A flaw was found in ieee80211_rx_h_defragment in net/mac80211/rx.c in the Linux Kernel's WiFi     implementation. This vulnerability can be abused to inject packets or exfiltrate selected fragments when     another device sends fragmented frames, and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
    The highest threat from this vulnerability is to integrity. (CVE-2020-26147)

    A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFI_CERT_X509_GUID     are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a     security threat and breach system integrity, confidentiality and even lead to a denial of service problem.
    (CVE-2020-26541)

    A vulnerability was found in the bluez, where Passkey Entry protocol used in Secure Simple Pairing (SSP),     Secure Connections (SC) and LE Secure Connections (LESC) of the Bluetooth Core Specification is vulnerable     to an impersonation attack where an active attacker can impersonate the initiating device without any     previous knowledge. (CVE-2020-26558)

    A flaw was found in the Linux kernel. Improper access control in BlueZ may allow an authenticated user to     potentially enable information disclosure via adjacent access. The highest threat from this vulnerability     is to data confidentiality and integrity. (CVE-2021-0129)

    A flaw was found in the Linux kernel's KVM implementation, where improper handing of the VM_IO|VM_PFNMAP     VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest.
    This flaw allows users who can start and control a VM to read/write random pages of memory, resulting in     local privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity,     and system availability. (CVE-2021-22543)

    A flaw was found in the Linux kernel's handling of the removal of Bluetooth HCI controllers. This flaw     allows an attacker with a local account to exploit a race condition, leading to corrupted memory and     possible privilege escalation. The highest threat from this vulnerability is to confidentiality,     integrity, as well as system availability. (CVE-2021-32399)

    A use-after-free flaw was found in hci_send_acl in the bluetooth host controller interface (HCI) in Linux     kernel, where a local attacker with an access rights could cause a denial of service problem on the system     The issue results from the object hchan, freed in hci_disconn_loglink_complete_evt, yet still used in     other places. The highest threat from this vulnerability is to data integrity, confidentiality and system     availability. (CVE-2021-33034)

    The canbus filesystem in the Linux kernel contains an information leak of kernel memory to devices on the     CAN bus network link layer.  An attacker with the ability to dump messages on the CAN bus is able to learn     of uninitialized stack values by dumbing messages on the can bus. (CVE-2021-34693)

    An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux     kernel. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a     system crash or a leak of internal kernel information. The highest threat from this vulnerability is to     system availability. (CVE-2021-3506)

    A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in     the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the     system. (CVE-2021-3564)

    A flaw use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in     the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call     hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(),     hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system     or escalate their privileges on the system. (CVE-2021-3573)

    A flaw was found in the Linux kernels NFC implementation, A NULL pointer dereference and BUG leading to a     denial of service can be triggered by a local unprivileged user causing a kernel panic. (CVE-2021-38208)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: usbhid: fix info leak in hid_submit_ctrl

    In hid_submit_ctrl(), the way of calculating the report length doesn'ttake into account that report->size     can be zero. When running thesyzkaller reproducer, a report of size 0 causes hid_submit_ctrl) tocalculate     transfer_buffer_length as 16384. When this urb is passed tothe usb core layer, KMSAN reports an info leak     of 16384 bytes.

    To fix this, first modify hid_report_len() to account for the zeroreport size case by using DIV_ROUND_UP     for the division. Then, call itfrom hid_submit_ctrl(). (CVE-2021-46906)

    In the Linux kernel, the following vulnerability has been resolved:

    dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails (CVE-2021-46938)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Restructure trace_clock_global() to never block (CVE-2021-46939)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid1: properly indicate failure when ending a failed write request

    This patch addresses a data corruption bug in raid1 arrays using bitmaps.Without this fix, the bitmap bits     for the failed I/O end up being cleared.

    Since we are in the failure leg of raid1_end_write_request, the requesteither needs to be retried     (R1BIO_WriteError) or failed (R1BIO_Degraded). (CVE-2021-46950)

    In the Linux kernel, the following vulnerability has been resolved:

    tpm: efi: Use local variable for calculating final log size (CVE-2021-46951)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure (CVE-2021-46953)

    In the Linux kernel, the following vulnerability has been resolved:

    openvswitch: fix stack OOB read while fragmenting IPv4 packets (CVE-2021-46955)

    In the Linux kernel, the following vulnerability has been resolved:

    virtiofs: fix memory leak in virtio_fs_probe() (CVE-2021-46956)

    In the Linux kernel, the following vulnerability has been resolved:

    spi: Fix use-after-free with devm_spi_alloc_* (CVE-2021-46959)

    In the Linux kernel, the following vulnerability has been resolved:

    cifs: Return correct error code from smb2_get_enc_key (CVE-2021-46960)

    In the Linux kernel, the following vulnerability has been resolved:

    irqchip/gic-v3: Do not enable irqs when handling spurious interrups (CVE-2021-46961)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() (CVE-2021-46963)

    In the Linux kernel, the following vulnerability has been resolved:

    nbd: Fix NULL pointer in flush_workqueue (CVE-2021-46981)

    In the Linux kernel, the following vulnerability has been resolved:

    kyber: fix out of bounds access when preempted (CVE-2021-46984)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: scan: Fix a memory leak in an error handling path (CVE-2021-46985)

    In the Linux kernel, the following vulnerability has been resolved:

    userfaultfd: release page in error path to avoid BUG_ON (CVE-2021-46988)

    In the Linux kernel, the following vulnerability has been resolved:

    hfsplus: prevent corruption in shrinking truncate (CVE-2021-46989)

    In the Linux kernel, the following vulnerability has been resolved:

    i40e: Fix use-after-free in i40e_client_subtask() (CVE-2021-46991)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nftables: avoid overflows in nft_hash_buckets() (CVE-2021-46992)

    In the Linux kernel, the following vulnerability has been resolved:

    sched: Fix out-of-bound access in uclamp (CVE-2021-46993)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: do asoc update earlier in sctp_sf_do_dupcook_a (CVE-2021-46999)

    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix inode leak on getattr error in __fh_to_dentry (CVE-2021-47000)

    In the Linux kernel, the following vulnerability has been resolved:

    ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook (CVE-2021-47006)

    In the Linux kernel, the following vulnerability has been resolved:

    net: Only allow init netns to set default tcp cong to a restricted algo (CVE-2021-47010)

    In the Linux kernel, the following vulnerability has been resolved:

    net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send (CVE-2021-47013)

    In the Linux kernel, the following vulnerability has been resolved:

    bnxt_en: Fix RX consumer index logic in the error path. (CVE-2021-47015)

    In the Linux kernel, the following vulnerability has been resolved:

    bus: qcom: Put child node before return (CVE-2021-47054)

    In the Linux kernel, the following vulnerability has been resolved:

    mtd: require write permissions for locking and badblock ioctls (CVE-2021-47055)

    In the Linux kernel, the following vulnerability has been resolved:

    regmap: set debugfs_name to NULL after it is freed (CVE-2021-47058)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: Stop looking for coalesced MMIO zones if the bus is destroyed (CVE-2021-47060)

    In the Linux kernel, the following vulnerability has been resolved:

    uio_hv_generic: Fix a memory leak in error handling paths (CVE-2021-47071)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/rxe: Clear all QP fields if creation failed (CVE-2021-47078)

    In the Linux kernel, the following vulnerability has been resolved:

    neighbour: allow NUD_NOARP entries to be forced GCed (CVE-2021-47109)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/kvm: Disable kvmclock on all CPUs on shutdown (CVE-2021-47110)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/kvm: Teardown PV features on boot CPU as well (CVE-2021-47112)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed (CVE-2021-47117)

    In the Linux kernel, the following vulnerability has been resolved:

    pid: take a reference when initializing `cad_pid` (CVE-2021-47118)

    In the Linux kernel, the following vulnerability has been resolved:

    HID: magicmouse: fix NULL-deref on disconnect (CVE-2021-47120)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions (CVE-2021-47126)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nft_ct: skip expectations for confirmed conntrack (CVE-2021-47129)

    In the Linux kernel, the following vulnerability has been resolved:

    cxgb4: avoid accessing registers when clearing filters (CVE-2021-47138)

    In the Linux kernel, the following vulnerability has been resolved:

    drm/amdgpu: Fix a use-after-free (CVE-2021-47142)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: do not BUG_ON in link_to_fixup_dir (CVE-2021-47145)

    In the Linux kernel, the following vulnerability has been resolved:

    mld: fix panic in mld_newpack() (CVE-2021-47146)

    In the Linux kernel, the following vulnerability has been resolved:

    net: dsa: fix a crash if ->get_sset_count() fails (CVE-2021-47159)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: skb_linearize the head skb when reassembling msgs (CVE-2021-47162)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: wait and exit until all work queues are done (CVE-2021-47163)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() (CVE-2021-47166)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: Fix an Oopsable condition in __nfs_pageio_add_request() (CVE-2021-47167)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: fix an incorrect limit in filelayout_decode_layout() (CVE-2021-47168)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: usbfs: Don't WARN about excessively large memory allocations (CVE-2021-47170)

    In the Linux kernel, the following vulnerability has been resolved:

    net: usb: fix memory leak in smsc75xx_bind (CVE-2021-47171)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/vt-d: Fix sysfs leak in alloc_iommu() (CVE-2021-47177)

    In the Linux kernel, the following vulnerability has been resolved:

    net: bridge: fix vlan tunnel dst refcnt when egressing (CVE-2021-47222)

    In the Linux kernel, the following vulnerability has been resolved:

    net: bridge: fix vlan tunnel dst null pointer dereference (CVE-2021-47223)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86: Immediately reset the MMU context when the SMM flag is cleared (CVE-2021-47230)

    In the Linux kernel, the following vulnerability has been resolved:

    net: cdc_eem: fix tx fixup skb leak (CVE-2021-47236)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: fix memory leak in ip_mc_add1_src (CVE-2021-47238)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: synproxy: Fix out of bounds when parsing TCP options (CVE-2021-47245)

    In the Linux kernel, the following vulnerability has been resolved:

    net/mlx5e: Fix page reclaim for dead peer hairpin (CVE-2021-47246)

    In the Linux kernel, the following vulnerability has been resolved:

    udp: fix race between close() and udp_abort() (CVE-2021-47248)

    In the Linux kernel, the following vulnerability has been resolved:

    net: rds: fix memory leak in rds_recvmsg (CVE-2021-47249)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipv4: fix memory leak in netlbl_cipsov4_add_std (CVE-2021-47250)

    In the Linux kernel, the following vulnerability has been resolved:

    gfs2: Fix use-after-free in gfs2_glock_shrink_scan (CVE-2021-47254)

    In the Linux kernel, the following vulnerability has been resolved:

    kvm: LAPIC: Restore guard to prevent illegal APIC register access (CVE-2021-47255)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/memory-failure: make sure wait for page writeback in memory_failure (CVE-2021-47256)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: core: Fix error handling of scsi_host_alloc() (CVE-2021-47258)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: Fix use-after-free in nfs4_init_client() (CVE-2021-47259)

    In the Linux kernel, the following vulnerability has been resolved:

    NFS: Fix a potential NULL dereference in nfs_get_client() (CVE-2021-47260)

    In the Linux kernel, the following vulnerability has been resolved:

    IB/mlx5: Fix initializing CQ fragments buffer (CVE-2021-47261)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86: Ensure liveliness of nested VM-Enter fail tracepoint message (CVE-2021-47262)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/ipoib: Fix warning caused by destroying non-initial netns (CVE-2021-47266)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Correct the length check which causes memory corruption (CVE-2021-47274)

    In the Linux kernel, the following vulnerability has been resolved:

    ftrace: Do not blindly read the ip address in ftrace_bug() (CVE-2021-47276)

    In the Linux kernel, the following vulnerability has been resolved:

    kvm: avoid speculation-based attacks from out-of-range memslot accesses (CVE-2021-47277)

    In the Linux kernel, the following vulnerability has been resolved:

    drm: Fix use-after-free read in drm_getunique() (CVE-2021-47280)

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 SUSE Linux SLED12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2324-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary     kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
    - CVE-2019-25045: Fixed an use-after-free issue in the Linux kernel The XFRM subsystem, related to an     xfrm_state_fini panic. (bsc#1187049)
    - CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the     kernel with System execution privileges needed. (bsc#1187601)
    - CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege     with no additional execution privileges needed. (bsc#1187595)
    - CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby     man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
    - CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive     information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
    - CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to     potentially enable information disclosure via adjacent access. (bsc#1186463)
    - CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
    - CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-     SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)


Tenable has extracted the preceding description block directly from the SUSE 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 SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2349-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary     kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
    - CVE-2019-25045: Fixed an use-after-free issue in the Linux kernel The XFRM subsystem, related to an     xfrm_state_fini panic. (bsc#1187049)
    - CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the     kernel with System execution privileges needed. (bsc#1187601)
    - CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege     with no additional execution privileges needed. (bsc#1187595)
    - CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby     man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
    - CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive     information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
    - CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to     potentially enable information disclosure via adjacent access. (bsc#1186463)
    - CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
    - CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-     SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)


Tenable has extracted the preceding description block directly from the SUSE 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 SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2422-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2021-22555: A heap out-of-bounds write was discovered in net/netfilter/x_tables.c (bnc#1188116).
    - CVE-2021-33909: Extremely large seq buffer allocations in seq_file could lead to buffer underruns and     code execution (bsc#1188062).
    - CVE-2021-3609: A use-after-free in can/bcm could have led to privilege escalation (bsc#1187215).
    - CVE-2021-33624: In kernel/bpf/verifier.c a branch can be mispredicted (e.g., because of type confusion)     and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel     attack, aka CID-9183671af6db (bnc#1187554).
    - CVE-2021-0605: In pfkey_dump of af_key.c, there is a possible out-of-bounds read due to a missing bounds     check. This could lead to local information disclosure in the kernel with System execution privileges     needed. User interaction is not needed for exploitation (bnc#1187601).
    - CVE-2021-0512: In __hidinput_change_resolution_multipliers of hid-input.c, there is a possible out of     bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no     additional execution privileges needed. User interaction is not needed for exploitation (bnc#1187595).
    - CVE-2020-26558: Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 may permit a     nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey     authentication procedure) by reflection of the public key and the authentication evidence of the     initiating device, potentially permitting this attacker to complete authenticated pairing with the     responding device using the correct Passkey for the pairing session. The attack methodology determines the     Passkey value one bit at a time (bnc#1179610 bnc#1186463).
    - CVE-2021-34693: net/can/bcm.c allowed local users to obtain sensitive information from kernel stack     memory because parts of a data structure are uninitialized (bnc#1187452).
    - CVE-2020-36385: An issue was discovered in drivers/infiniband/core/ucma.c has a use-after-free because     the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka     CID-f5449e74802c (bnc#1187050).
    - CVE-2021-0129: Improper access control in BlueZ may have allowed an authenticated user to potentially     enable information disclosure via adjacent access (bnc#1186463).
    - CVE-2020-36386: An issue was discovered net/bluetooth/hci_event.c has a slab out-of-bounds read in     hci_extended_inquiry_result_evt, aka CID-51c19bf3d5cf (bnc#1187038).
    - CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and     Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is     authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of     802.11n), an adversary can abuse this to inject arbitrary network packets (bnc#1185861).
    - CVE-2021-33200: kernel/bpf/verifier.c enforced incorrect limits for pointer arithmetic operations, aka     CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading     to local privilege escalation to root. In particular, there is a corner case where the off reg causes a     masking direction change, which then results in an incorrect final aux->alu_limit (bnc#1186484).


Tenable has extracted the preceding description block directly from the SUSE 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated.
    Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an     adversary can abuse this to inject arbitrary network packets. (CVE-2020-24588)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4356 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):
    * kernel: out-of-bounds reads in pinctrl subsystem (CVE-2020-0427)
    * kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)
    * kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)
    * kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers     (CVE-2020-24504)
    * kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)
    * kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)
    * kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)
    * kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)
    * kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)
    * kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)
    * kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)
    * kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)
    * kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)
    * kernel: powerpc: RTAS calls can be used to compromise kernel integrity (CVE-2020-27777)
    * kernel: locking inconsistency in tty_io.c and tty_jobctrl.c can lead to a read-after-free     (CVE-2020-29660)
    * kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function via a long SSID value     (CVE-2020-36158)
    * kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt()  (CVE-2020-36386)
    * kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)
    * kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c (CVE-2021-3348)
    * kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)
    * kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)
    * kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)
    * kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)
    * kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)
    * kernel: Mounting overlayfs inside an unprivileged user namespace can reveal files (CVE-2021-3732)
    * kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)
    * kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)
    * kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode     (CVE-2021-28950)
    * kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c (CVE-2021-28971)
    * kernel: protection can be bypassed to leak content of kernel memory (CVE-2021-29155)
    * kernel: improper input validation in tipc_nl_retrieve_key function in net/tipc/node.c (CVE-2021-29646)
    * kernel: lack a full memory barrier may lead to DoS (CVE-2021-29650)
    * kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)
    * kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak     content of kernel memory (CVE-2021-31829)
    * kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic     operations by BPF verifier (CVE-2021-33200)
    * kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)
    * kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)
    * kernel: the copy-on-write implementation can grant unintended write access because of a race condition     in a THP mapcount check (CVE-2020-29368)
    * kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50 (CVE-2021-3635)
    * kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (CVE-2021-3659)
    * kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)
    * kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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 SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1975-1 advisory.

  - An issue was discovered in the Linux kernel through 5.3.9. There is a use-after-free when aa_label_parse()     fails in aa_audit_rule_init() in security/apparmor/audit.c. (CVE-2019-18814)

  - In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function     (related to include/trace/events/lock.h). (CVE-2019-19769)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a     network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP,     CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
    (CVE-2020-24586)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary     can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP encryption key is periodically renewed. (CVE-2020-24587)

  - The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated.
    Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an     adversary can abuse this to inject arbitrary network packets. (CVE-2020-24588)

  - A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free     which might lead to privilege escalations. (CVE-2020-25670)

  - A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-     free which might lead to privilege escalations. (CVE-2020-25671)

  - A memory leak vulnerability was found in Linux kernel in llcp_sock_connect (CVE-2020-25672)

  - A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak     and eventually hanging-up the system. (CVE-2020-25673)

  - An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other     clients even though the sender has not yet successfully authenticated to the AP. This might be abused in     projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier     to exploit other vulnerabilities in connected clients. (CVE-2020-26139)

  - An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation     does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can     abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-     confidentiality protocol. (CVE-2020-26141)

  - An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3     implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process     them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets     independent of the network configuration. (CVE-2020-26145)

  - An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble     fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject     packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP,     CCMP, or GCMP data-confidentiality protocol is used. (CVE-2020-26147)

  - An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-     of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects     pointer types that do not define a ptr_limit. (CVE-2020-27170)

  - An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error     (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to     side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory,     aka CID-10d2bb2e6b1d. (CVE-2020-27171)

  - An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users     can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
    (CVE-2020-27673)

  - A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the     ability to set extended attributes to panic the system, causing memory corruption or escalating     privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-27815)

  - An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel     version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system to     gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information.
    The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-35519)

  - An issue was discovered in the Linux kernel before 5.8. arch/x86/kvm/svm/svm.c allows a     set_memory_region_test infinite loop for certain nested page faults, aka CID-e72436bc3a52.
    (CVE-2020-36310)

  - An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a     denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering     many encrypted regions), aka CID-7be74942f184. (CVE-2020-36311)

  - An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvm_main.c has a     kvm_io_bus_unregister_dev memory leak upon a kmalloc failure, aka CID-f65886606c2d. (CVE-2020-36312)

  - An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka     CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system     crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as     CVE-2021-28950. (CVE-2020-36322)

  - An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in     the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local     user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability     is to confidentiality, integrity, as well as system availability. (CVE-2021-20268)

  - Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to     elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local     user with the CAP_NET_RAW capability. (CVE-2021-23134)

  - An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine     the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI     subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at     /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in     drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the     pointer to an iscsi_transport struct in the kernel module's global variables. (CVE-2021-27363)

  - An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is     adversely affected by the ability of an unprivileged user to craft Netlink messages. (CVE-2021-27364)

  - An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have     appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can     send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a     Netlink message. (CVE-2021-27365)

  - An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the     netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of     changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior     of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
    (CVE-2021-28038)

  - An issue was discovered in the Linux kernel through 5.11.6. fastrpc_internal_invoke in     drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka     CID-20c40794eb85. This is a related issue to CVE-2019-2308. (CVE-2021-28375)

  - rtw_wx_set_scan in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c in the Linux kernel through 5.11.6     allows writing beyond the end of the ->ssid[] array. NOTE: from the perspective of kernel.org releases,     CVE IDs are not normally used for drivers/staging/* (unfinished work); however, system integrators may     have situations in which a drivers/staging issue is relevant to their own customer base. (CVE-2021-28660)

  - The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use     uninitialized or stale values. This initialization went too far and may under certain conditions also     overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking     persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died,     leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable.
    XSA-365 was classified to affect versions back to at least 3.11. (CVE-2021-28688)

  - An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A stall on CPU can occur     because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1. (CVE-2021-28950)

  - An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device     driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. (This     has been fixed in 5.12-rc4.) (CVE-2021-28952)

  - A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It     allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer     before a cloning operation, aka CID-dbcc7d57bffc. (CVE-2021-28964)

  - In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some     Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS     status in a PEBS record is mishandled, aka CID-d88d05a9e0b6. (CVE-2021-28971)

  - In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has     a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8. (CVE-2021-28972)

  - BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements,     allowing them to execute arbitrary code within the kernel context. This affects     arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c. (CVE-2021-29154)

  - An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable     out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre     mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer     arithmetic operations, the pointer modification performed by the first operation is not correctly     accounted for when restricting subsequent operations. (CVE-2021-29155)

  - An issue was discovered in the Linux kernel through 5.11.10. drivers/net/ethernet/freescale/gianfar.c in     the Freescale Gianfar Ethernet driver allows attackers to cause a system crash because a negative fragment     size is calculated in situations involving an rx queue overrun when jumbo packets are used and NAPI is     enabled, aka CID-d8861bab48b6. (CVE-2021-29264)

  - An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in     drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up     sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
    (CVE-2021-29265)

  - An issue was discovered in the Linux kernel before 5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows     attackers to obtain sensitive information from kernel memory because of a partially uninitialized data     structure, aka CID-50535249f624. (CVE-2021-29647)

  - An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to     cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h     lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.
    (CVE-2021-29650)

  - An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in     drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.
    (CVE-2021-30002)

  - net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI     controller. (CVE-2021-32399)

  - In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an     hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value. (CVE-2021-33034)

  - kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic     operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel     memory, leading to local privilege escalation to root. In particular, there is a corner case where the off     reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
    (CVE-2021-33200)

  - The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when     the source register was known to be 0. A local attacker with the ability to load bpf programs could use     this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and     possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in     the upstream kernel in commit 9b00f1b78809 (bpf: Fix truncation handling for mod32 dst reg wrt zero) and     in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101. (CVE-2021-3444)

  - A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice     into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest     threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions     before kernel 5.12-rc6 are affected (CVE-2021-3483)

  - The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size     was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel     and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee (bpf, ringbuf: Deny     reserve of buffers larger than ringbuf) (v5.13-rc4) and backported to the stable kernels in v5.12.4,     v5.11.21, and v5.10.37. It was introduced via 457f44363a88 (bpf: Implement BPF ring buffer and verifier     support for it) (v5.8-rc1). (CVE-2021-3489)

  - The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly     update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and     therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e (bpf: Fix alu32 const     subreg bound tracking on bitwise operations) (v5.13-rc4) and backported to the stable kernels in v5.12.4,     v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 (bpf: Verifier, do     explicit ALU32 bounds tracking) (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 (bpf:Fix a     verifier failure with xor) ( 5.10-rc1). (CVE-2021-3490)

  - The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the     PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc//mem.
    This could be used to create a heap overflow leading to arbitrary code execution in the kernel. It was     addressed via commit d1f82808877b (io_uring: truncate lengths larger than MAX_RW_COUNT on provide     buffers) (v5.13-rc1) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was     introduced in ddf0322db79c (io_uring: add IORING_OP_PROVIDE_BUFFERS) (v5.7-rc1). (CVE-2021-3491)

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
150407	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:1890-1)	Nessus	SuSE Local Security Checks	2021/6/9	2026/6/25	high
150696	SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2021:1888-1)	Nessus	SuSE Local Security Checks	2021/6/11	2026/6/25	high
149396	KB5003172: Windows 10 version 1507 LTS Security Update (May 2021)	Nessus	Windows : Microsoft Bulletins	2021/5/11	2024/11/28	medium
149398	KB5003173: Windows 10 version 2004 / Windows 10 version 20H2 Security Update (May 2021)	Nessus	Windows : Microsoft Bulletins	2021/5/11	2025/10/31	critical
160440	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2022-004 (ALASKERNEL-5.4-2022-004)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high
151653	SUSE SLED12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:2324-1)	Nessus	SuSE Local Security Checks	2021/7/15	2026/6/25	high
151658	SUSE SLES12: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2021:2349-1)	Nessus	SuSE Local Security Checks	2021/7/15	2026/6/25	high
151998	SUSE SLES12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:2422-1)	Nessus	SuSE Local Security Checks	2021/7/22	2026/6/25	high
229890	Linux Distros Unpatched Vulnerability : CVE-2020-24588	Nessus	Misc.	2025/3/5	2026/11/12	low
155219	RHEL 8 : kernel (RHSA-2021:4356)	Nessus	Red Hat Local Security Checks	2021/11/11	2025/8/15	high
151730	openSUSE 15 Security Update : kernel (openSUSE-SU-2021:1975-1)	Nessus	SuSE Local Security Checks	2021/7/16	2023/1/17	critical
160459	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-002 (ALASKERNEL-5.10-2022-002)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high

偵測

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