QID 356920

Date Published: 2024-01-16

QID 356920: Amazon Linux Security Advisory for kernel-livepatch : ALAS2023LIVEPATCH-2023-020

A use-after-free vulnerability in the linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. the function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. we recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630. (
( CVE-2023-6111)



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 securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023LIVEPATCH-2023-020 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356920

    CVE-2023-6111 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023LIVEPATCH-2023-020 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALASLIVEPATCH-2023-020.html
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