The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1093 advisory.

    - futex: Handle faults correctly for PI futexes (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Simplify fixup_pi_state_owner() (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Use pi_state_update_owner() in put_pi_state() (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Provide and use pi_state_update_owner() (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - rtmutex: Remove unused argument from rt_mutex_proxy_unlock() (Waiman Long) [1924633 1924635]     {CVE-2021-3347}
    - futex: Replace pointless printk in fixup_owner() (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Ensure the correct return value from futex_lock_pi() (Waiman Long) [1924633 1924635]     {CVE-2021-3347}
    - futex: Don't enable IRQs unconditionally in put_pi_state() (Waiman Long) [1924633 1924635]     {CVE-2021-3347}
    - futex: Fix incorrect should_fail_futex() handling (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Consistently use fshared as boolean (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Remove needless goto's (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - futex: Remove put_futex_key() (Waiman Long) [1924633 1924635] {CVE-2021-3347}
    - scsi: iscsi: Verify lengths on passthrough PDUs (Chris Leech) [1930832 1930833] {CVE-2021-27364}
    - scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE (Chris Leech) [1930855 1930856]     {CVE-2021-27365}
    - scsi: iscsi: Restrict sessions and handles to admin capabilities (Chris Leech) [1940423 1930809]     {CVE-2021-27363}
    - fix regression in 'epoll: Keep a reference on files added to the check list' (Carlos Maiolino) [1920775     1920776] {CVE-2020-0466}
    - do_epoll_ctl(): clean the failure exits up a bit (Carlos Maiolino) [1920775 1920776] {CVE-2020-0466}
    - epoll: Keep a reference on files added to the check list (Carlos Maiolino) [1920775 1920776]     {CVE-2020-0466}
    - net/vmw_vsock: fix NULL pointer dereference (Jon Maloy) [1925599 1925600] {CVE-2021-26708}
    - net/vmw_vsock: improve locking in vsock_connect_timeout() (Jon Maloy) [1925599 1925600] {CVE-2021-26708}
    - vsock: fix locking in vsock_shutdown() (Jon Maloy) [1925599 1925600] {CVE-2021-26708}
    - vsock: fix the race conditions in multi-transport support (Jon Maloy) [1925599 1925600] {CVE-2021-26708}
    - [target] scsi: target: Fix XCOPY NAA identifier lookup (Maurizio Lombardi) [1900462 1900463]     {CVE-2020-28374}

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 CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:1093 advisory.

  - kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

  - Kernel: KVM: host stack overflow due to lazy update IOAPIC (CVE-2020-27152)

  - kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)

  - kernel: race conditions caused by wrong locking in net/vmw_vsock/af_vsock.c (CVE-2021-26708)

  - kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)

  - kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)

  - kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

  - kernel: Use after free via PI futex state (CVE-2021-3347)

Note that Nessus has not tested for this issue 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 :

  - Use-after-free vulnerability in fs/block_dev.c in the     Linux kernel before 5.8 allows local users to gain     privileges or cause a denial of service by leveraging     improper access to a certain error     field.(CVE-2020-15436)

  - 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)

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

  - In the Linux kernel 4.14 longterm through 4.14.165 and     4.19 longterm through 4.19.96 (and 5.x before 5.2),     there is a use-after-free (write) in the     i915_ppgtt_close function in     drivers/gpu/drm/i915/i915_gem_gtt.c, aka     CID-7dc40713618c. This is related to     i915_gem_context_destroy_ioctl in     drivers/gpu/drm/i915/i915_gem_context.c.(CVE-2020-7053)

  - In kbd_keycode of keyboard.c, there is a possible out     of bounds write due to a missing bounds check. This     could lead to local escalation of privilege with no     additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-144161459(CVE-2020-0431)

  - In various methods of hid-multitouch.c, there is a     possible out of bounds write due to a missing bounds     check. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-162844689References: Upstream kernel(CVE-2020-0465)

  - mwifiex_cmd_802_11_ad_hoc_start in     drivers/net/wireless/marvell/mwifiex/join.c in the     Linux kernel through 5.10.4 might allow remote     attackers to execute arbitrary code via a long SSID     value, aka CID-5c455c5ab332.(CVE-2020-36158)

  - A flaw was found in the way RTAS handled memory     accesses in userspace to kernel communication. On a     locked down (usually due to Secure Boot) guest system     running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to     further increase their privileges to that of a running     kernel.(CVE-2020-27777)

  - An issue was discovered in romfs_dev_read in     fs/romfs/storage.c in the Linux kernel before 5.8.4.
    Uninitialized memory leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)

  - An issue was discovered in kmem_cache_alloc_bulk in     mm/slub.c in the Linux kernel before 5.5.11. The     slowpath lacks the required TID increment, aka     CID-fd4d9c7d0c71.(CVE-2020-29370)

  - 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)

  - A buffer over-read (at the framebuffer layer) in the     fbcon code in the Linux kernel before 5.8.15 could be     used by local attackers to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and then     making a syncfs system call can lead to a     use-after-free in __mutex_lock in     kernel/locking/mutex.c. This is related to     mutex_can_spin_on_owner in kernel/locking/mutex.c,
    __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and     btrfs_insert_delayed_items in     fs/btrfs/delayed-inode.c.(CVE-2019-19813)

  - 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.(CVE-2020-12656)

  - A flaw was found in the Linux kernels implementation of     MIDI, where an attacker with a local account and the     permissions to issue an ioctl commands to midi devices,     could trigger a use-after-free. A write to this     specific memory while freed and before use could cause     the flow of execution to change and possibly allow for     memory corruption or privilege     escalation.(CVE-2020-27786)

  - A flaw memory leak in the Linux kernel performance     monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this     flaw to starve the resources causing denial of     service.(CVE-2020-25704)

  - A flaw was found in the Linux Kernel before 5.8-rc6 in     the ZRAM kernel module, where a user with a local     account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)

  - 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 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. 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. 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)

  - A vulnerability was found in the Linux Kernel where the     function sunkbd_reinit having been scheduled by     sunkbd_interrupt before sunkbd being freed. Though the     dangling pointer is set to NULL in sunkbd_disconnect,     there is still an alias in sunkbd_reinit causing Use     After Free.(CVE-2020-25669)

  - A flaw was found in the Linux kernel. A use-after-free     was found in the way the console subsystem was using     ioctls KDGKBSENT and KDSKBSENT. A local user could use     this flaw to get read memory access out of bounds. The     highest threat from this vulnerability is to data     confidentiality.(CVE-2020-25656)

  - The Linux kernel before version 5.8 is vulnerable to a     NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - A stack information leak flaw was found in s390/s390x     in the Linux kernel's 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)

  - ** DISPUTED ** drivers/gpu/drm/radeon/radeon_display.c     in the Linux kernel 5.2.14 does not check the     alloc_workqueue return value, leading to a NULL pointer     dereference. NOTE: A third-party software maintainer     states that the work queue allocation is happening     during device initialization, which for a graphics card     occurs during boot. It is not attacker controllable and     OOM at that time is highly unlikely.(CVE-2019-16230)

  - 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)

  - A pivot_root race condition in fs/namespace.c in the     Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before     4.19.119, and 5.x before 5.3 allows local users to     cause a denial of service (panic) by corrupting a     mountpoint reference counter.(CVE-2020-12114)

  - A slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)

  - Insufficient control flow in certain data structures     for some Intel(R) Processors with Intel(R) Processor     Graphics may allow an unauthenticated user to     potentially enable information disclosure via local     access.(CVE-2019-14615)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     btrfs_queue_work in     fs/btrfs/async-thread.c.(CVE-2019-19377)

  - In do_epoll_ctl and ep_loop_check_proc of eventpoll.c,     there is a possible use after free due to a logic     error. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-147802478References: Upstream kernel(CVE-2020-0466)

  - ** DISPUTED ** fs/nfsd/nfs3xdr.c in the Linux kernel     through 5.10.8, when there is an NFS export of a     subdirectory of a filesystem, allows remote attackers     to traverse to other parts of the filesystem via     READDIRPLUS. NOTE: some parties argue that such a     subdirectory export is not intended to prevent this     attack see also the exports(5) no_subtree_check default     behavior.(CVE-2021-3178)

  - A flaw was found in the Linux kernels eBPF     implementation. By default, accessing the eBPF verifier     is only accessible to privileged users with     CAP_SYS_ADMIN. A local user with the ability to insert     eBPF instructions can abuse a flaw in eBPF to corrupt     memory. The highest threat from this vulnerability is     to confidentiality, integrity, as well as system     availability.(CVE-2021-29154)

  - A flaw memory leak in the Linux kernel webcam device     functionality was found in the way user calls ioctl     that triggers video_usercopy function. The highest     threat from this vulnerability is to system     availability.(CVE-2021-30002)

  - 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.(CVE-2021-3483)

  - A flaw in the Linux kernels implementation of the RPA     PCI Hotplug driver for power-pc. A user with     permissions to write to the sysfs settings for this     driver can trigger a buffer overflow when writing a new     device name to the driver from userspace, overwriting     data in the kernel's stack.(CVE-2021-28972)

  - A race condition flaw was found in get_old_root in     fs/btrfs/ctree.c in the Linux kernel in btrfs     file-system. This flaw allows a local attacker with a     special user privilege to cause a denial of service due     to not locking an extent buffer before a cloning     operation. The highest threat from this vulnerability     is to system availability.(CVE-2021-28964)

  - A flaw was found in the Linux kernel. The usbip driver     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. The highest     threat from this vulnerability is to system     availability.(CVE-2021-29265)

  - An out-of-bounds (OOB) memory access flaw was found in     x25_bind in net/x25/af_x25.c in the Linux kernel. 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)

  - There is a flaw reported in     drivers/gpu/drm/nouveau/nouveau_sgdma.c in     nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The     issue results from the lack of validating the existence     of an object prior to performing operations on the     object. An attacker with a local account with a root     privilege, can leverage this vulnerability to escalate     privileges and execute code in the context of the     kernel.(CVE-2021-20292)

  - A flaw was found in the JFS filesystem code. This flaw     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)

  - A flaw was found in the Linux kernel. A denial of     service problem is identified if an extent tree is     corrupted in a crafted ext4 filesystem in     fs/ext4/extents.c in ext4_es_cache_extent. Fabricating     an integer overflow, A local attacker with a special     user privilege may cause a system crash problem which     can lead to an availability threat.(CVE-2021-3428)

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.

This update syncs the RT kernel from the SUSE Linux Enterprise 15-SP2 codestream. This update was imported from the SUSE:SLE-15-SP2:Update update project.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0529 advisory.

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

    Security Fix(es):

    * kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

    * kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In do_epoll_ctl and ep_loop_check_proc of eventpoll.c, there is a possible use after free due to a logic     error. This could lead to local escalation of privilege with no additional execution privileges needed.
    User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-147802478References: Upstream kernel (CVE-2020-0466)

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

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4912-1 advisory.

    Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux kernel did not properly validate     computation of branch displacements in some situations. A local attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2021-29154)

    It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel,     leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2020-0423)

    It was discovered that the HID multitouch implementation within the Linux kernel did not properly validate     input events in some situations. A physically proximate attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2020-0465)

    It was discovered that the eventpoll (aka epoll) implementation in the Linux kernel contained a logic     error that could lead to a use after free vulnerability. A local attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2020-0466)

    It was discovered that a race condition existed in the perf subsystem of the Linux kernel, leading to a     use-after-free vulnerability. An attacker with access to the perf subsystem could use this to cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-14351)

    It was discovered that the frame buffer implementation in the Linux kernel did not properly handle some     edge cases in software scrollback. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2020-14390)

    It was discovered that a race condition existed in the hugetlb sysctl implementation in the Linux kernel.
    A privileged attacker could use this to cause a denial of service (system crash). (CVE-2020-25285)

    It was discovered that the GENEVE tunnel implementation in the Linux kernel when combined with IPSec did     not properly select IP routes in some situations. An attacker could use this to expose sensitive     information (unencrypted network traffic). (CVE-2020-25645)

    Bodong Zhao discovered a use-after-free in the Sun keyboard driver implementation in the Linux kernel. A     local attacker could use this to cause a denial of service or possibly execute arbitrary code.
    (CVE-2020-25669)

    Shisong Qin and Bodong Zhao discovered that Speakup screen reader driver in the Linux kernel did not     correctly handle setting line discipline in some situations. A local attacker could use this to cause a     denial of service (system crash). (CVE-2020-27830)

    It was discovered that the Marvell WiFi-Ex device driver in the Linux kernel did not properly validate ad-     hoc SSIDs. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2020-36158)

    Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate     attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2021-20194)

    Adam Zabrocki discovered that the kprobes subsystem in the Linux kernel did not properly detect linker     padding in some situations. A privileged attacker could use this to cause a denial of service (system     crash) or possibly expose sensitive information. (CVE-2021-3411)

     discovered that the NFS implementation in the Linux kernel did not properly prevent access outside     of an NFS export that is a subdirectory of a file system. An attacker could possibly use this to bypass     NFS access restrictions. (CVE-2021-3178)

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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0592 advisory.

    This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify     the code of a running kernel.

    Security Fix(es):

    * kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

    * kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

    * kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

    * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

    * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0622 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

    * kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

    * kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

    * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

    * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

    * kernel: out of bounds write in hid-multitouch.c may lead to escalation of privilege (CVE-2020-0465)

    * 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: possible use-after-free in bluetooth module (CVE-2021-3752)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * kernel-rt: update to the latest RHEL7.9.z12 source tree (BZ#2039101)

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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0620 advisory.

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

    Security Fix(es):

    * kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466)

    * kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

    * kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

    * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

    * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

    * kernel: out of bounds write in hid-multitouch.c may lead to escalation of privilege (CVE-2020-0465)

    * 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: possible use-after-free in bluetooth module (CVE-2021-3752)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Kernel with enabled BERT does not decode CPU fatal events correctly (BZ#1950302)

    * RHEL 7.9 - Call trace seen during controller random reset on IB config (BZ#1984070)

    * Infinite loop in blk_set_queue_dying() from blk_queue_for_each_rl() when another CPU races and modifies     the queue's blkg_list (BZ#2029574)

    * NFS client kernel crash in NFS4 backchannel transmit path - ftrace_raw_event_rpc_task_queued called from     rpc_run_bc_task (BZ#2039508)

    * SELinux is preventing / from mount access on the filesystem /proc (BZ#2040196)

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.

ID	Name	Product	Family	Published	Updated	Severity
148371	Oracle Linux 8 : kernel (ELSA-2021-1093)	Nessus	Oracle Linux Local Security Checks	4/7/2021	11/1/2024	high
148422	CentOS 8 : kernel (CESA-2021:1093)	Nessus	CentOS Local Security Checks	4/9/2021	1/5/2024	high
151229	EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-2040)	Nessus	Huawei Local Security Checks	7/1/2021	5/9/2022	high
146282	openSUSE Security Update : RT kernel (openSUSE-2021-242)	Nessus	SuSE Local Security Checks	2/8/2021	2/9/2023	critical
167224	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.20.5)	Nessus	Misc.	11/9/2022	6/7/2024	critical
158071	RHEL 7 : kernel (RHSA-2022:0529)	Nessus	Red Hat Local Security Checks	2/15/2022	11/7/2024	high
243372	Linux Distros Unpatched Vulnerability : CVE-2020-0466	Nessus	Misc.	8/4/2025	9/30/2025	high
148494	Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)	Nessus	Ubuntu Local Security Checks	4/14/2021	8/27/2024	high
158260	RHEL 7 : kpatch-patch (RHSA-2022:0592)	Nessus	Red Hat Local Security Checks	2/22/2022	11/7/2024	high
158264	RHEL 7 : kernel-rt (RHSA-2022:0622)	Nessus	Red Hat Local Security Checks	2/22/2022	11/7/2024	high
158266	RHEL 7 : kernel (RHSA-2022:0620)	Nessus	Red Hat Local Security Checks	2/23/2022	11/7/2024	high

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critical

critical

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