CVE-2012-4025: Squashfs Project Squashfs

Medium severity, CVSS 6.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Integer 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.

Affected products

• Squashfs Project Squashfs: up to and including 4.2

Published 2012-07-19. Last modified 2026-06-16.