Description
libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)
Published: 2026-09-14
Score: 2.5 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Mon, 14 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title Heap Overflow in libarchive Gzip Writer via Original-Filename libarchive: libarchive: Denial of Service via heap-based buffer overflow in gzip writer
Weaknesses CWE-120
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 14 Sep 2026 12:00:00 +0000

Type Values Removed Values Added
Title Heap Overflow in libarchive Gzip Writer via Original-Filename

Mon, 14 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Description libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)
First Time appeared Libarchive
Libarchive libarchive
Weaknesses CWE-122
CPEs cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*
Vendors & Products Libarchive
Libarchive libarchive
References
Metrics cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L'}


Subscriptions

Libarchive Libarchive
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-14T00:10:51.769Z

Reserved: 2025-10-27T00:00:00.000Z

Link: CVE-2025-64031

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-14T01:16:26.190

Modified: 2026-09-14T01:16:26.190

Link: CVE-2025-64031

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-14T00:00:00Z

Links: CVE-2025-64031 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-14T11:45:17Z

Weaknesses
  • CWE-120

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

  • CWE-122

    Heap-based Buffer Overflow