DescriptionInteger overflow in the queue_init function in unsquashfs.c in unsquashfs in Squashfs 4.2 and earlier allows remote attackers to execute arbitrary code via a crafted block_log field in the superblock of a .sqsh file, leading to a heap-based buffer overflow.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs683371

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
squashfs-tools (PTS)buster, buster (security)1:4.3-12+deb10u2fixed
bullseye (security), bullseye1:4.4-2+deb11u2fixed
sid, trixie1:4.6.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[squeeze] - squashfs-tools <no-dsa> (Minor issue)
[wheezy] - squashfs-tools <no-dsa> (Minor issue)

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