CVE-2011-2521

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.

CVSS v2.0 4.9 MEDIUM

4.9^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2011/07/06/4	Mailing List Third Party Advisory
https://github.com/torvalds/linux/commit/fc66c5210ec2539e800e87d7b3a985323c7be96e	Patch Third Party Advisory
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39	Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=719228	Issue Tracking Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc66c5210ec2539e800e87d7b3a985323c7be96e

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2012-05-24 16:55

Updated : 2023-02-12 20:31

NVD link : CVE-2011-2521

Mitre link : CVE-2011-2521

JSON object : View

CWE

CWE-189

Numeric Errors

Products Affected

linux

linux_kernel

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4.9 /10