QID 240441

QID 240441: Red Hat Update for kpatch-patch (RHSA-2022:1103)

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 unix_gc() which could result in a local privilege escalation (cve-2021-0920)
  • kernel: fget: check that the fd still exists after getting a ref to it (cve-2021-4083)
  • kernel: possible privileges escalation due to missing tlb flush (cve-2022-0330)
  • kernel: failing usercopy allows for use-after-free exploitation (cve-2022-22942)

Affected Products:

  • Red Hat enterprise linux server - aus 7.6 x86_64
  • Red Hat enterprise linux server for power le - update services for sap solutions 7.6 ppc64le
  • Red Hat enterprise linux for x86_64 - update services for sap solutions 7.6 x86_64



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 of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 6.9 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2022:1103 for updates and patch information.
    Vendor References

    CVEs related to QID 240441

    CVE-2021-0920 | CVE-2021-4083 | CVE-2022-0330 | CVE-2022-22942 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2022:1103 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2022:1103
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