QID 174996

QID 174996: SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:14724-1)

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

- CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).
- CVE-2021-30002: Fixed a memory leak for large arguments in
video_usercopy (bsc#1184120).
- CVE-2021-29650: Fixed an issue where the netfilter subsystem allowed
attackers to cause a denial of service (bsc#1184208).
- CVE-2021-28972: Fixed 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 (bsc#1184198).
- CVE-2021-28950: Fixed an infinite loop because a retry loop continually
finds the same bad inode (bsc#1184194).
- CVE-2021-27365: Fixed an issue where 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 (bsc#1182715).
- CVE-2021-27364: Fixed an issue where an attacker could craft Netlink
messages (bsc#1182717).
- CVE-2021-27363: Fixed a kernel pointer leak which could have been used
to determine the address of the iscsi_transport structure (bsc#1182716).
- CVE-2021-20261: Fixed a race condition in the implementation of the
floppy disk drive controller driver software (bsc#1183400).
- CVE-2020-36322: Fixed an issue in the FUSE filesystem implementation
which could have caused a system crash (bsc#1184211).
- CVE-2020-35519: Fixed an out-of-bounds memory access was found in
x25_bind (bsc#1183696).

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:14724-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 174996

    CVE-2021-20261 | CVE-2021-30002 | CVE-2020-35519 | CVE-2021-28950 | CVE-2021-27365 | CVE-2021-28972 | CVE-2021-29650 | CVE-2021-3483 | CVE-2021-27364 | CVE-2020-36322 | CVE-2021-27363 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:14724-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-May/008759.html
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