CVE-2009-0834: Canonical Ubuntu Linux

Low severity, CVSS 3.6. EPSS: 0.4% chance of exploitation in the next 30 days.

The audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.

Affected products

• Canonical Ubuntu Linux: version 7.10 only; version 8.04 only; version 8.10 only
• Debian Debian Linux: version 4.0 only; version 5.0 only
• Linux Linux Kernel: up to and including 2.6.28.7
• Opensuse Opensuse: version 10.3 only; version 11.0 only
• Red Hat Enterprise Linux Desktop: version 4.0 only; version 5.0 only
• Red Hat Enterprise Linux Eus: version 4.7 only; version 5.3 only
• Red Hat Enterprise Linux Server: version 4.0 only; version 5.0 only
• Red Hat Enterprise Linux Server Aus: version 5.3 only
• Red Hat Enterprise Linux Workstation: version 4.0 only; version 5.0 only
• Suse Linux Enterprise Desktop: version 10 only
• Suse Linux Enterprise Server: version 10 only
• Suse Linux Enterprise Software Development Kit: version 10 only

Published 2009-03-06. Last modified 2026-06-16.