CVE-2021-36976

libarchive: use-after-free in copy_string()

Published Jul 20, 2021 CVSS 3.1 · 6.5 Medium EPSS 2.8% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3950-1 libarchive security update
Ubuntu USN Ubuntu USN USN-5291-1 libarchive vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 2, 2026, 6:04 PM
Reserved
Jul 20, 2021, 12:00 AM
Status
Modified
Published
Jul 20, 2021, 7:15 AM
Modified
Nov 2, 2026, 7:17 PM
Severity
Moderate
Public date
Jun 22, 2021, 12:00 AM