PT-2011-3903 · Linux+1 · Linux Kernel+1

Published 2011-08-23 · Updated 2023-02-13 · CVE-2011-2497

Positive Technologies (AI Summary)

CVSS v2.0

8.3

High

Base vector

AV:A/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.0

Description The issue is caused by an integer underflow in the l2cap config req function, which can lead to a denial of service due to heap memory corruption or possibly have other unspecified impacts. This occurs when a small command-size value is sent within the command header of a Logical Link Control and Adaptation Protocol (L2CAP) configuration request, resulting in a buffer overflow.

Recommendations For Linux kernel versions prior to 3.0, update to version 3.0 or later to resolve the issue.

Fix

DoS

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2011-2497

DSA-2303-1

DSA-2310-1

RHSA-2011:1189

RHSA-2011:1253

RHSA-2011_1189

USN-1219-1

USN-1220-1

USN-1225-1

USN-1227-1

USN-1228-1

USN-1239-1

USN-1240-1

USN-1241-1

USN-1245-1

USN-1246-1

USN-1253-1

USN-1256-1

Affected Products

Linux Kernel

Red Hat

References · 53

• https://ubuntu.com/security/notices/USN-1241-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1225-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2011-2497 · Security Note
• https://bdu.fstec.ru/vul/2015-04607 · Security Note
• https://ubuntu.com/security/notices/USN-1246-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1240-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1220-1 · Vendor Advisory
• http://securityreason.com/securityalert/8359 · Patch
• https://linux.oracle.com/errata/ELSA-2011-1189.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1227-1 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=716805 · Patch
• https://bdu.fstec.ru/vul/2015-04341 · Security Note
• http://openwall.com/lists/oss-security/2011/06/27/3 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2011-2497 · Vendor Advisory
• https://bdu.fstec.ru/vul/2014-00069 · Security Note