PT-2012-1560 · Linux+1 · Linux Kernel+1

Arun Sharma · Published 2011-10-05 · Updated 2023-02-13 · CVE-2011-2521

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.39

Description The issue is related to the x86 assign hw event function in the Performance Events subsystem, which does not properly calculate counter values. This allows local users to cause a denial of service, resulting in a system panic, via the perf program.

Recommendations For versions prior to 2.6.39, update to version 2.6.39 or later to resolve the issue.

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

CVE-2011-2521

RHSA-2011:1350

RHSA-2011_1350

Affected Products

Linux Kernel

Red Hat

References · 7

• https://github.com/torvalds/linux/commit/fc66c5210ec2539e800e87d7b3a985323c7be96e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-2521 · Security Note
• https://linux.oracle.com/errata/ELSA-2011-1350.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2011/07/06/4 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=719228 · Note
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc66c5210ec2539e800e87d7b3a985323c7be96e · Note