CVE-2011-1746

Published: 9 May 2011

Multiple integer overflows in the (1) agp_allocate_memory and (2) agp_create_user_memory functions in drivers/char/agp/generic.c in the Linux kernel before 2.6.38.5 allow local users to trigger buffer overflows, and consequently cause a denial of service (system crash) or possibly have unspecified other impact, via vectors related to calls that specify a large number of memory pages.

From the Ubuntu Security Team

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service.

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 (2.6.35-30.55)
	natty	Released (2.6.38-10.44)
	upstream	Released (2.6.39~rc5)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b522f02184b413955f3bc952e3776ce41edc6355
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	lucid	Released (2.6.32-317.32)
	maverick	Ignored (end of life)
	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 (2.6.35-30.55~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/791918

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