CVE-2011-0521

Published: 02 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	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	Upstream	Released (2.6.38~rc2)






linux-fsl-imx51 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)






linux-lts-backport-maverick Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)






linux-lts-backport-natty Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)






linux-mvl-dove Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)






linux-source-2.6.15 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)






linux-ti-omap4 Launchpad, Ubuntu, Debian	Upstream	Released (2.6.38~rc2)

References

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