CVE-2011-2022

Published: 9 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	dapper	Does not exist
	hardy	Released (2.6.24-29.91)
	lucid	Released (2.6.32-33.64)
	maverick	Released (2.6.35-30.52)
	natty	Released (2.6.38-10.44)
	upstream	Released (2.6.39~rc5)
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Released (2.6.32-317.32)
	maverick	Ignored (binary supplied by "linux" now)
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Released (2.6.31-609.26)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Released (2.6.35-30.54~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-10.44~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Released (2.6.32-217.34)
	maverick	Released (2.6.32-417.34)
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Ignored
	hardy	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc5)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Released (2.6.38-1209.15)
	upstream	Released (2.6.39~rc5)

References

Bugs

https://launchpad.net/bugs/788684

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