CVE-2011-2918

MEDIUM

Description

The Performance Events subsystem in the Linux kernel before 3.1 does not properly handle event overflows associated with PERF_COUNT_SW_CPU_CLOCK events, which allows local users to cause a denial of service (system hang) via a crafted application.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a8b0ca17b80e92faab46ee7179ba9e99ccb61233

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

http://www.openwall.com/lists/oss-security/2011/08/16/1

https://bugzilla.redhat.com/show_bug.cgi?id=730706

https://github.com/torvalds/linux/commit/a8b0ca17b80e92faab46ee7179ba9e99ccb61233

Details

Source: MITRE

Published: 2012-05-24

Updated: 2012-05-29

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM