CVE-2011-2909

Published: 6 October 2011

The do_devinfo_ioctl function in drivers/staging/comedi/comedi_fops.c in the Linux kernel before 3.1 allows local users to obtain sensitive information from kernel memory via a copy of a short string.

From the Ubuntu Security Team

Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. 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	hardy	Not vulnerable
	lucid	Released (2.6.32-34.73)
	maverick	Released (2.6.35-30.61)
	natty	Released (2.6.38-13.52)
	oneiric	Not vulnerable (3.0.0-8.10)
	upstream	Released (3.1~rc1)
	Patches: Introduced by ed9eccbe8970f6eedc1b978c157caf1251a896d4 Fixed by 819cbb120eaec7e014e5abd029260db1ca8c5735
linux-ec2 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-318.37)
	maverick	Ignored (end of life)
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.31-611.29)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.35-30.61~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.38-13.52~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-mvl-dove Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-218.35)
	maverick	Released (2.6.32-418.35)
	natty	Does not exist
	oneiric	Does not exist
	upstream	Released (3.1~rc1)
linux-ti-omap4 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.26)
	natty	Released (2.6.38-1209.17)
	oneiric	Not vulnerable (3.0.0-1201.4)
	upstream	Released (3.1~rc1)

References

Bugs

https://launchpad.net/bugs/869261

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