CVE-2011-4081

MEDIUM

Description

crypto/ghash-generic.c in the Linux kernel before 3.1 allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact by triggering a failed or missing ghash_setkey function call, followed by a (1) ghash_update function call or (2) ghash_final function call, as demonstrated by a write operation on an AF_ALG socket.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7ed47b7d142ec99ad6880bbbec51e9f12b3af74c

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

http://www.openwall.com/lists/oss-security/2011/10/27/2

https://bugzilla.redhat.com/show_bug.cgi?id=749475

https://github.com/torvalds/linux/commit/7ed47b7d142ec99ad6880bbbec51e9f12b3af74c

Details

Source: MITRE

Published: 2012-05-24

Updated: 2012-05-29

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