QID 174811

QID 174811: SUSE Enterprise Linux Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP2) (SUSE-SU-2021:0840-1)

This update for the Linux Kernel 5.3.18-24_46 fixes several issues.

The following security issues were fixed:

- CVE-2020-29368: Fixed an issue in copy-on-write implementation which
could have granted unintended write access because of a race condition
in a THP mapcount check (bsc#1179664).
- CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault
handling, allowing local users to execute code in the kernel
(bsc#1181553).

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-2021:0840-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 174811

    CVE-2020-29368 | CVE-2021-3347 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:0840-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-March/008501.html
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