CVE-2011-0521

Published: 2 February 2011

The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

From the Ubuntu Security Team

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker 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 (2.6.24-29.89)
	karmic	Ignored
	lucid	Released (2.6.32-31.60)
	maverick	Released (2.6.35-29.51)
	natty	Released (2.6.38-1.27)
	upstream	Released (2.6.38~rc2)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=cb26a24ee9706473f31d34cc259f4dcf45cd0644
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-315.28)
	maverick	Ignored (end of life)
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.31-609.26)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Released (2.6.35-30.54~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-1.27~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-216.33)
	maverick	Released (2.6.32-416.33)
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Released (2.6.15-57.97)
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.38~rc2)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Not vulnerable (2.6.38-1201.2)
	upstream	Released (2.6.38~rc2)

References

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