CVE-2010-2495: Canonical Ubuntu Linux

High severity, CVSS 10.0. EPSS: 2.9% chance of exploitation in the next 30 days.

The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does not properly validate certain values associated with an interface, which allows attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via vectors related to a routing change.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 8.04 only; version 9.04 only; version 9.10 only; version 10.04 only; version 10.10 only
• Linux Linux Kernel: before 2.6.34 (fixed in 2.6.34)
• Suse Suse Linux Enterprise Desktop: version 11 only
• Suse Suse Linux Enterprise High Availability Extension: version 11 only
• Suse Suse Linux Enterprise Server: version 11 only

Published 2010-09-08. Last modified 2026-06-16.