Link Following Affecting libarchive package, versions <0:3.3.3-3.el8_5


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-RHEL8-LIBARCHIVE-4224201
  • published16 Dec 2021
  • disclosed21 Aug 2021

Introduced: 21 Aug 2021

CVE-2021-23177  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libarchive to version 0:3.3.3-3.el8_5 or higher.
This issue was patched in RHSA-2022:0892.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. 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 change the ACL of a file on the system and gain more privileges.

CVSS Scores

version 3.1