CVE-2004-2135: Linux Kernel

Low severity, CVSS 2.1. EPSS: 1.2% chance of exploitation in the next 30 days.

cryptoloop on Linux kernel 2.6.x, when used on certain file systems with a block size 1024 or greater, has certain "IV computation" weaknesses that allow watermarked files to be detected without decryption.

Affected products

• Linux Linux Kernel: version 2.4.0 only; version 2.4.1 only; version 2.4.2 only; version 2.4.3 only; version 2.4.4 only; version 2.4.5 only; …

Published 2004-05-26. Last modified 2026-06-16.