Description
libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).
Published: 2021-07-20
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-3950-1 libarchive security update
Ubuntu USN Ubuntu USN USN-5291-1 libarchive vulnerabilities
History

Mon, 03 Nov 2025 22:30:00 +0000

Type Values Removed Values Added
References

Subscriptions

Apple Ipados Iphone Os Macos Watchos
Fedoraproject Fedora
Libarchive Libarchive
Splunk Universal Forwarder
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-03T21:45:04.640Z

Reserved: 2021-07-20T00:00:00.000Z

Link: CVE-2021-36976

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-07-20T07:15:07.950

Modified: 2025-11-03T22:15:49.807

Link: CVE-2021-36976

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-06-22T00:00:00Z

Links: CVE-2021-36976 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses