CVE-2010-2963

Published: 19 October 2010

drivers/media/video/v4l2-compat-ioctl32.c in the Video4Linux (V4L) implementation in the Linux kernel before 2.6.36 on 64-bit platforms does not validate the destination of a memory copy operation, which allows local users to write to arbitrary kernel memory locations, and consequently gain privileges, via a VIDIOCSTUNER ioctl call on a /dev/video device, followed by a VIDIOCSMICROCODE ioctl call on this device.

From the Ubuntu Security Team

Kees Cook discovered that the V4L1 32bit compat interface did not correctly validate certain parameters. A local attacker on a 64bit system with access to a video device could exploit this to gain root privileges.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Released (2.6.24-28.80)
	jaunty	Released (2.6.28-19.66)
	karmic	Released (2.6.31-22.67)
	lucid	Released (2.6.32-25.45)
	maverick	Released (2.6.35-22.35)
	upstream	Needs triage
	Patches: hardy: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2963/patches/hardy/linux/0001-v4l-disable-dangerous-buggy-compat-function.txt jaunty: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2963/patches/jaunty/linux/0001-v4l-disable-dangerous-buggy-compat-function.txt karmic: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2963/patches/karmic/linux/0001-v4l-disable-dangerous-buggy-compat-function.txt lucid: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2963/patches/lucid/linux/0001-v4l-disable-dangerous-buggy-compat-function.txt maverick: http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2963/patches/maverick/linux/0001-v4l-disable-dangerous-buggy-compat-function.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-307.21)
	lucid	Released (2.6.32-309.18)
	maverick	Ignored (binary supplied by "linux" now)
	upstream	Needs triage
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-112.30)
	lucid	Released (2.6.31-608.22)
	maverick	Does not exist
	upstream	Needs triage
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Released (2.6.35-25.44~lucid1)
	maverick	Does not exist
	upstream	Needs triage
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (abandonded branch)
	lucid	Released (2.6.32-216.33)
	maverick	Released (2.6.32-416.33)
	upstream	Needs triage
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Not vulnerable
	hardy	Does not exist
	jaunty	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	upstream	Needs triage
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.22)
	upstream	Needs triage

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›