CVE-2011-2521

medium

Description

The x86_assign_hw_event function in arch/x86/kernel/cpu/perf_event.c in the Performance Events subsystem in the Linux kernel before 2.6.39 does not properly calculate counter values, which allows local users to cause a denial of service (panic) via the perf program.

References

https://github.com/torvalds/linux/commit/fc66c5210ec2539e800e87d7b3a985323c7be96e

https://bugzilla.redhat.com/show_bug.cgi?id=719228

http://www.openwall.com/lists/oss-security/2011/07/06/4

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc66c5210ec2539e800e87d7b3a985323c7be96e

Details

Source: Mitre, NVD

Published: 2012-05-24

Updated: 2023-02-13

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium