Vulnerability in libarchive library (CVE-2025-5916)
Summary
Vulnerability in libarchive library (CVE-2025-5916). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
A vulnerability has been identified in the libarchive library. This flaw involves an integer overflow that can be triggered when processing a Web Archive (WARC) file that claims to have more than INT64_MAX - 4 content bytes. An attacker could craft a malicious WARC archive to induce this overflow, potentially leading to unpredictable program behavior, memory corruption, or a denial-of-service condition within applications that process such archives using libarchive. This bug affects libarchive versions prior to 3.8.0.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-5916 has been found in libarchive library.
Risk of unauthorized operations or information disclosure. CVSS score: 3.9/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "libarchive library CVE-2025-5916" on the vendor's site.
CVE-2025-5916 (libarchive library) — CWE-190 / CVSS v3 3.9
Attack vector: local
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-190) exists in libarchive library.
Check the vendor advisory for the affected versions of libarchive library.
Severity: Low (CVSS 3.9/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで libarchive library を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-5916 libarchive Fixed in: 3.4.3-2+deb11u3
References
- issue secalert@redhat.com
- patch secalert@redhat.com
- patch secalert@redhat.com
- web secalert@redhat.com