CVE-2011-2497 Integer overflow in n/a

What is CVE-2011-2497?

CVE-2011-2497 is a high-severity vulnerability in Linux kernel, published on 29 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-191

Which versions are affected by CVE-2011-2497?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2011-2497?

Upgrade to a fixed version.

Is CVE-2011-2497 being exploited?

There is no known exploitation of CVE-2011-2497 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-65mg-fq5m-qr37.