CVE-2025-5916

Name	CVE-2025-5916
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1107623

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libarchive (PTS)	bullseye	3.4.3-2+deb11u1	vulnerable
	bullseye (security)	3.4.3-2+deb11u2	vulnerable
	bookworm	3.6.2-1+deb12u3	fixed
	bookworm (security)	3.6.2-1+deb12u2	vulnerable
	forky, sid, trixie	3.7.4-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libarchive	source	bookworm	3.6.2-1+deb12u3
libarchive	source	(unstable)	3.7.4-4			1107623

Notes

[bullseye] - libarchive <postponed> (Minor issue)
https://github.com/libarchive/libarchive/pull/2568
Fixed by: https://github.com/libarchive/libarchive/commit/ef093729521fcf73fa4007d5ae77adfe4df42403 (v3.8.0)