CVE-2009-3612: Canonical Ubuntu Linux

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The tcf_fill_node function in net/sched/cls_api.c in the netlink subsystem in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a certain tcm__pad2 structure member, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors. NOTE: this issue exists because of an incomplete fix for CVE-2005-4881.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 8.04 only; version 8.10 only; version 9.04 only; version 9.10 only
• Fedoraproject Fedora: version 10 only
• Linux Linux Kernel: up to and including 2.4.37.6; from 2.6.0, before 2.6.32 (fixed in 2.6.32); version 2.6.32 only
• Opensuse Opensuse: version 11.0 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 2009-10-19. Last modified 2026-06-16.