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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2987-1 libarchive security update
Debian DLA Debian DLA DLA-3202-1 libarchive security update
Ubuntu USN Ubuntu USN USN-5291-1 libarchive vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 02 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-02T18:02:14.581Z

Reserved: 2021-12-16T00:00:00.000Z

Link: CVE-2021-31566

cve-icon Vulnrichment

Updated: 2024-08-03T23:03:33.486Z

cve-icon NVD

Status : Modified

Published: 2022-08-23T16:15:09.337

Modified: 2026-11-02T18:18:33.520

Link: CVE-2021-31566

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-08-22T00:00:00Z

Links: CVE-2021-31566 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses