CVE-2011-2022

Published: 09 May 2011

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.

From the Ubuntu security team

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






	Patches: Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=194b3da873fd334ef183806db751473512af29ce
linux-ec2 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-fsl-imx51 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-lts-backport-maverick Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-lts-backport-natty Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-mvl-dove Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-source-2.6.15 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)






linux-ti-omap4 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.39~rc5)

References

Bugs

https://launchpad.net/bugs/788684

CVE-2011-2022

From the Ubuntu security team

Medium

Status

References

Bugs

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