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CVE Database

CVE-2011-2517

Impact: Important
Public: 2011-05-18
Bugzilla: 718152: CVE-2011-2517 kernel: nl80211: missing check for valid SSID size in scan operations
IAVA: 2012-A-0020

Details

The MITRE CVE dictionary describes this issue as:

Multiple buffer overflows in net/wireless/nl80211.c in the Linux kernel before 2.6.39.2 allow local users to gain privileges by leveraging the CAP_NET_ADMIN capability during scan operations with a long SSID value.

Find out more about CVE-2011-2517 from the MITRE CVE dictionary and NIST NVD.

Statement

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 4 as it did not provide support for the Linux wireless LAN (802.11) configuration API. This has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1212.html, https://rhn.redhat.com/errata/RHSA-2011-1189.html, and https://rhn.redhat.com/errata/RHSA-2011-1253.html.

CVSS v2 metrics

Base Score: 6.6
Base Metrics: AV:L/AC:M/Au:S/C:C/I:C/A:C
Access Vector: Local
Access Complexity: Medium
Authentication: Single Instance
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2011:1253 September 12, 2011
Red Hat Enterprise Linux EUS (v. 5.6 server) (kernel) RHSA-2011:1813 December 13, 2011
Red Hat Enterprise Linux version 5 (kernel) RHSA-2011:1212 September 06, 2011
Red Hat Enterprise Linux version 6 (kernel) RHSA-2011:1189 August 23, 2011

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.