PT-2011-3911 · Linux+1 · Linux Kernel+1

John W. Linville + 1 · Published 2011-08-23 · Updated 2023-02-13 · CVE-2011-2517

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.39.2

Description The issue is related to multiple buffer overflows in the Linux kernel, specifically in the net/wireless/nl80211.c file. This can be exploited by local users who have the CAP NET ADMIN capability, allowing them to gain privileges during scan operations when a long SSID value is used.

Recommendations For Linux kernel versions prior to 2.6.39.2, update to version 2.6.39.2 or later to resolve the issue. As a temporary workaround, consider restricting the CAP NET ADMIN capability to minimize the risk of exploitation.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2011-2517

DSA-2303-1

RHSA-2011:1189

RHSA-2011:1212

RHSA-2011:1253

RHSA-2011:1813

RHSA-2011_1189

RHSA-2011_1212

USN-1241-1

USN-1244-1

USN-1269-1

USN-1272-1

USN-1274-1

USN-1278-1

USN-1279-1

USN-1281-1

USN-1285-1

USN-1286-1

Affected Products

Linux Kernel

Red Hat

References · 23

• https://github.com/torvalds/linux/commit/208c72f4fe44fe09577e7975ba0e7fa0278f3d03 · Patch
• https://linux.oracle.com/errata/ELSA-2011-1189.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1241-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2011-2025.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1286-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1244-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1269-1 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2011-1212.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1272-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2011-2517 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1278-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1285-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1279-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2011-2517 · Security Note
• https://ubuntu.com/security/notices/USN-1281-1 · Vendor Advisory