CVE-2008-5659: GNU Classpath

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

The gnu.java.security.util.PRNG class in GNU Classpath 0.97.2 and earlier uses a predictable seed based on the system time, which makes it easier for context-dependent attackers to conduct brute force attacks against cryptographic routines that use this class for randomness, as demonstrated against DSA private keys.

Affected products

• GNU Classpath: up to and including 0.97.2; version 0.6 only; version 0.7 only; version 0.8 only; version 0.9 only; version 0.10 only; …

Published 2008-12-17. Last modified 2026-06-16.