Vulnerability in libarchive library (CVE-2025-5915)
Summary
Vulnerability in libarchive library (CVE-2025-5915). Confidential information can be exposed externally.
Original description
The description as published by the source.
A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.
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-2025-5915 has been found in libarchive library.
Confidential information can be exposed externally. CVSS score: 6.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "libarchive library CVE-2025-5915" on the vendor's site.
CVE-2025-5915 (libarchive library) — CWE-122 / CVSS v3 6.6
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-122) exists in libarchive library.
Check the vendor advisory for the affected versions of libarchive library.
Severity: Medium (CVSS 6.6/10). Confidential information can be exposed externally.
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-2025-5915 libarchive Fixed in: 3.6.2-1+deb12u3
References
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- report bugzilla.redhat.com
- web github.com
- web access.redhat.com
- web github.com