Public Date:
CWE-839 -> CWE-129 -> CWE-119
962792: CVE-2013-2094 kernel: perf_swevent_enabled array out-of-bound access

The MITRE CVE dictionary describes this issue as:

The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call.

Find out more about CVE-2013-2094 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect the kernel packages as shipped with Red Hat Enterprise Linux 5 because we did not backport upstream commit b0a873eb that introduced this issue. This issue was addressed in Red Hat Enterprise Linux 6 via RHSA-2013:0830 (, Red Hat Enterprise Linux 6.1 Extended update support via RHSA-2013:0841 (, Red Hat Enterprise Linux 6.2 Extended update support via RHSA-2013:0840 (, Red Hat Enterprise Linux 6.3 Extended Update Support via RHSA-2013:0832 (, and Red Hat Enterprise MRG 2 via RHSA-2013:0829 ( Red Hat Enterprise Linux 6.0 was not affected by this flaw. Refer to for further information.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 7.2
Base Metrics AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
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
Red Hat Enterprise Linux Server EUS (v. 6.3) (kernel) RHSA-2013:0832 2013-05-17
Red Hat Enterprise Linux Server EUS (v. 6.2) (kernel) RHSA-2013:0840 2013-05-20
Red Hat Enterprise Linux version 6 (kernel) RHSA-2013:0830 2013-05-16
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2013:0829 2013-05-20
Red Hat Enterprise Linux Server EUS (v. 6.1) (kernel) RHSA-2013:0841 2013-05-20

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kernel Not affected
Red Hat Enterprise Linux Server EUS (v. 6.1) kernel Affected