# CVE-2025-5916: Libarchive: integer overflow while reading warc files at archive_read_support_format_warc.c CVE-2025-5916 is fixed in 6 products on 1 platform, first by libarchive-tools 3.6.0-1ubuntu1.5, released June 9, 2025. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2025-5916 - Priority: Routine - CVSS: 5.6 (Medium) - EPSS: 0.0022 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jun 9, 2025 - Weakness: Integer Overflow or Wraparound - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-5916 ## Description A vulnerability has been identified in the libarchive library. This flawinvolves an integer overflow that can be triggered when processing a WebArchive (WARC) file that claims to have more than INT64_MAX - 4 contentbytes. An attacker could craft a malicious WARC archive to induce thisoverflow, potentially leading to unpredictable program behavior, memorycorruption, or a denial-of-service condition within applications thatprocess such archives using libarchive. This bug affects libarchiveversions prior to 3.8.0. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bsdcpio Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | [bsdcpio 3.2.2-3.1ubuntu0.7+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bsdcpio-3.2.2-3.1ubuntu0.7-esm2.md) | Mar 13, 2026 | | Linux | bsdtar Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | [bsdtar 3.2.2-3.1ubuntu0.7+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bsdtar-3.2.2-3.1ubuntu0.7-esm2.md) | Mar 13, 2026 | | Linux | libarchive Debian 12.15 (bookworm) | 3.6.2-1+deb12u3 | [DEBIAN-CVE-2025-5916](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5916.md) | Jun 9, 2025 | | Linux | libarchive Debian 13.5 (trixie) | 3.7.4-4 | [DEBIAN-CVE-2025-5916](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5916.md) | Jun 9, 2025 | | Linux | libarchive Debian 14 | 3.7.4-4 | [DEBIAN-CVE-2025-5916](https://patchblox.com/security/data/fix/linux/debian-cve-2025-5916.md) | Jun 9, 2025 | | Linux | libarchive opensuse-leap 15.6 | 3.7.2-150600.3.17.1 | [SUSE-SU-2025:02566-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-02566-1.md) | Jul 31, 2025 | | Linux | libarchive sles 15.6 | 3.7.2-150600.3.17.1 | [SUSE-SU-2025:02566-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-02566-1.md) | Jul 31, 2025 | | Linux | libarchive sles 15.7 | 3.7.2-150600.3.17.1 | [SUSE-SU-2025:02566-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-02566-1.md) | Jul 31, 2025 | | Linux | libarchive-tools Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | [libarchive-tools 3.2.2-3.1ubuntu0.7+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libarchive-tools-3.2.2-3.1ubuntu0.7-esm2.md) | Mar 13, 2026 | | Linux | libarchive-tools Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm1 | [libarchive-tools 3.4.0-2ubuntu1.5+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libarchive-tools-3.4.0-2ubuntu1.5-esm1.md) | Mar 13, 2026 | | Linux | libarchive-tools Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.5 | [libarchive-tools 3.6.0-1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libarchive-tools-3.6.0-1ubuntu1.5.md) | Jun 9, 2025 | | Linux | libarchive-tools Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.5 | [libarchive-tools 3.7.2-2ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libarchive-tools-3.7.2-2ubuntu0.5.md) | Jun 9, 2025 | | Linux | libarchive-tools Ubuntu 24.10 (oracular) | 3.7.4-1ubuntu0.3 | [libarchive-tools 3.7.4-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libarchive-tools-3.7.4-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libarchive-tools Ubuntu 25.04 (plucky) | 3.7.7-0ubuntu2.3 | [libarchive-tools 3.7.7-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libarchive-tools-3.7.7-0ubuntu2.3.md) | Jan 16, 2026 | | Linux | libarchive-tools Ubuntu 25.10 (questing) | 3.7.7-0ubuntu3 | [libarchive-tools 3.7.7-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libarchive-tools-3.7.7-0ubuntu3.md) | Jun 9, 2025 | | Linux | libarchive13 Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.7+esm2 | [libarchive13 3.2.2-3.1ubuntu0.7+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libarchive13-3.2.2-3.1ubuntu0.7-esm2.md) | Mar 13, 2026 | | Linux | libarchive13 Ubuntu 20.04 LTS (focal) | 3.4.0-2ubuntu1.5+esm1 | [libarchive13 3.4.0-2ubuntu1.5+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libarchive13-3.4.0-2ubuntu1.5-esm1.md) | Mar 13, 2026 | | Linux | libarchive13 Ubuntu 22.04.1 LTS (jammy) | 3.6.0-1ubuntu1.5 | [libarchive13 3.6.0-1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libarchive13-3.6.0-1ubuntu1.5.md) | Jun 9, 2025 | | Linux | libarchive13t64 Ubuntu 24.04.5 LTS (noble) | 3.7.2-2ubuntu0.5 | [libarchive13t64 3.7.2-2ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libarchive13t64-3.7.2-2ubuntu0.5.md) | Jun 9, 2025 | | Linux | libarchive13t64 Ubuntu 24.10 (oracular) | 3.7.4-1ubuntu0.3 | [libarchive13t64 3.7.4-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libarchive13t64-3.7.4-1ubuntu0.3.md) | Jan 16, 2026 | | Linux | libarchive13t64 Ubuntu 25.04 (plucky) | 3.7.7-0ubuntu2.3 | [libarchive13t64 3.7.7-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libarchive13t64-3.7.7-0ubuntu2.3.md) | Jan 16, 2026 | | Linux | libarchive13t64 Ubuntu 25.10 (questing) | 3.7.7-0ubuntu3 | [libarchive13t64 3.7.7-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libarchive13t64-3.7.7-0ubuntu3.md) | Jun 9, 2025 | --- Data as of 2026-11-08T13:06:02Z UTC. 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