CVE-2011-2022

MEDIUM

Description

The agp_generic_remove_memory function in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 does not validate a certain start parameter, which allows local users to gain privileges or cause a denial of service (system crash) via a crafted AGPIOC_UNBIND agp_ioctl ioctl call, a different vulnerability than CVE-2011-1745.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=194b3da873fd334ef183806db751473512af29ce

http://openwall.com/lists/oss-security/2011/04/21/4

http://openwall.com/lists/oss-security/2011/04/22/7

http://rhn.redhat.com/errata/RHSA-2011-0927.html

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38.5

http://www.securityfocus.com/bid/47843

https://bugzilla.redhat.com/show_bug.cgi?id=698996

https://lkml.org/lkml/2011/4/14/293

Details

Source: MITRE

Published: 2011-05-09

Updated: 2014-01-14

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 6.9

Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM