CVE-2011-2497: Linux Kernel

High severity, CVSS 8.3. EPSS: 2% chance of exploitation in the next 30 days.

Integer underflow in the l2cap_config_req function in net/bluetooth/l2cap_core.c in the Linux kernel before 3.0 allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a small command-size value within the command header of a Logical Link Control and Adaptation Protocol (L2CAP) configuration request, leading to a buffer overflow.

Affected products

• Linux Linux Kernel: before 3.0 (fixed in 3.0)

Published 2011-08-29. Last modified 2026-06-16.