QID 240734

Date Published: 2022-10-19

QID 240734: Red Hat Update for kernel-rt (RHSA-2022:6991)

The kernel-rt packages provide the real time linux kernel, which enables fine-tuning for systems with extremely high determinism requirements...Security Fix(es):

    a use-after-free in cls_route filter implementation may lead to privilege escalation (cve-2022-2588).
    Information leak in the ipv6 implementation (cve-2021-45485).
    Information leak in the ipv4 implementation (cve-2021-45486).
    Incomplete cleanup of multi-core shared buffers (aka sbdr) (cve-2022-21123).
    Incomplete cleanup of microarchitectural fill buffers (aka sbds) (cve-2022-21125).
    Incomplete cleanup in specific special register write operations (aka drpw) (cve-2022-21166).
Affected Products:
    Red Hat enterprise linux for real time - telecommunications update service 8.4 x86_64.
    Red hat enterprise linux for real time for nfv - telecommunications update service 8.4 x86_64.
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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 - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2022:6991 for updates and patch information.
    Vendor References

    CVEs related to QID 240734

    CVE-2021-45485 | CVE-2021-45486 | CVE-2022-2588 | CVE-2022-21123 | CVE-2022-21125 | CVE-2022-21166 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2022:6991 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2022:6991
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