CVE-2008-1940: Grsecurity Kernel Patch

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

The RBAC functionality in grsecurity before 2.1.11-2.6.24.5 and 2.1.11-2.4.36.2 does not enforce user_transition_deny and user_transition_allow rules for the (1) sys_setfsuid and (2) sys_setfsgid calls, which allows local users to bypass restrictions for those calls.

Affected products

• Grsecurity Grsecurity Kernel Patch: version 2.4.33 only; version 2.4.33.2 only; version 2.4.33.3 only; version 2.4.33.4 only; version 2.4.34 only; version 2.6.18 only; …

Published 2008-04-25. Last modified 2026-06-16.