CVE-2012-6647

MEDIUM

Description

The futex_wait_requeue_pi function in kernel/futex.c in the Linux kernel before 3.5.1 does not ensure that calls have two different futex addresses, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted FUTEX_WAIT_REQUEUE_PI command.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6f7b0a2a5c0fb03be7c25bd1745baa50582348ef

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.1

http://www.openwall.com/lists/oss-security/2014/05/14/9

https://bugzilla.redhat.com/show_bug.cgi?id=1097746

https://github.com/torvalds/linux/commit/6f7b0a2a5c0fb03be7c25bd1745baa50582348ef

Details

Source: MITRE

Published: 2014-05-26

Updated: 2014-06-27

Type: CWE-20

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