QID 240390

Date Published: 2022-06-01

QID 240390: Red Hat Update for kernel-rt (RHSA-2022:4835)

the kernel-rt packages provide the real time linux kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):
  • kernel: new dns cache poisoning attack based on icmp fragment needed packets replies (cve-2021-20322)
  • kernel: security regression for cve-2018-13405 (cve-2021-4037)
  • kernel: buffer overflow in ipsec esp transformation code (cve-2022-27666)

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



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 Medium - 5.8 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2022:4835 for updates and patch information.
    Vendor References

    CVEs related to QID 240390

    CVE-2021-4037 | CVE-2021-20322 | CVE-2022-27666 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2022:4835 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2022:4835
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