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Amazon Linux AMI 2: CVE-2021-31566: Security patch for libarchive (ALAS-2023-2374)

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Amazon Linux AMI 2: CVE-2021-31566: Security patch for libarchive (ALAS-2023-2374)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/23/2022
Created
12/06/2023
Added
12/05/2023
Modified
12/05/2023

Description

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.

Solution(s)

  • amazon-linux-ami-2-upgrade-bsdcpio
  • amazon-linux-ami-2-upgrade-bsdtar
  • amazon-linux-ami-2-upgrade-libarchive
  • amazon-linux-ami-2-upgrade-libarchive-debuginfo
  • amazon-linux-ami-2-upgrade-libarchive-devel

References

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