QID 356757

Date Published: 2023-12-06

QID 356757: Amazon Linux Security Advisory for libarchive : ALAS2-2023-2374

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive.
An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive.
A local attacker may use this flaw to gain more privileges in a system. (
( CVE-2021-31566)



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: ALAS2-2023-2374 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356757

    CVE-2021-31566 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2374 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2374.html
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