CVE-2010-4074

Published: 29 November 2010

The USB subsystem in the Linux kernel before 2.6.36-rc5 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via vectors related to TIOCGICOUNT ioctl calls, and the (1) mos7720_ioctl function in drivers/usb/serial/mos7720.c and (2) mos7840_ioctl function in drivers/usb/serial/mos7840.c.

From the Ubuntu Security Team

Dan Rosenberg discovered that the USB subsystem did not correctly initialize certian structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Released (2.6.24-28.86)
	karmic	Released (2.6.31-22.73)
	lucid	Not vulnerable
	maverick	Not vulnerable
	upstream	Released (2.6.36~rc5)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a0846f1868b11cd827bdfeaf4527d8b1b1c0b098
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-307.27)
	lucid	Not vulnerable
	maverick	Ignored (end of life)
	upstream	Released (2.6.36~rc5)
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	Released (2.6.36~rc5)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	upstream	Released (2.6.36~rc5)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Not vulnerable
	maverick	Not vulnerable
	upstream	Released (2.6.36~rc5)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Not vulnerable
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	upstream	Released (2.6.36~rc5)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Not vulnerable
	upstream	Released (2.6.36~rc5)

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=648659

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 ›