QID 239891

Date Published: 2021-11-17

QID 239891: Red Hat Update for kpatch-patch (RHSA-2021:4645)

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: insufficient validation of user-supplied sizes for the msg_crypto message type (cve-2021-43267)

Affected Products:

  • Red Hat enterprise linux for x86_64 8 x86_64
  • Red Hat enterprise linux for power, little endian 8 ppc64le



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.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch.

    Refer to Refer to :
    Applying Package Updates to RHEL system     for details.

    Refer to Red Hat security advisory RHSA-2021:4645 Update to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239891

    CVE-2021-43267 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:4645 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:4645
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