CVE-2011-2484

Published: 24 June 2011

The add_del_listener function in kernel/taskstats.c in the Linux kernel 2.6.39.1 and earlier does not prevent multiple registrations of exit handlers, which allows local users to cause a denial of service (memory and CPU consumption), and bypass the OOM Killer, via a crafted application.

From the Ubuntu Security Team

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	hardy	Released (2.6.24-29.92)
	lucid	Released (2.6.32-34.77)
	maverick	Released (2.6.35-30.57)
	natty	Released (2.6.38-11.47)
	oneiric	Not vulnerable (3.0-3.4)
	precise	Not vulnerable (3.1.0-1.1)
	quantal	Not vulnerable
	saucy	Not vulnerable
	trusty	Not vulnerable (3.11.0-12.19)
	upstream	Released (3.0~rc5)
	Patches: Introduced by f9fd8914c1acca0d98b69d831b128d5b52f03c51 Fixed by 26c4caea9d697043cc5a458b96411b86d7f6babd
linux-ec2 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-318.38)
	maverick	Ignored (binary supplied by "linux" now)
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
linux-flo Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist (trusty was not-affected [3.4.0-1.3])
	upstream	Released (3.0~rc5)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.31-610.27)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
linux-goldfish Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-1.7])
	upstream	Released (3.0~rc5)
linux-grouper Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.1.10-8.28])
	upstream	Released (3.0~rc5)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.35-30.57~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.38-11.49~lucid1)
	maverick	Does not exist
	natty	Does not exist
	oneiric	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
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
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
linux-maguro Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.0.0-3.18])
	upstream	Released (3.0~rc5)
linux-mako Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-3.21])
	upstream	Released (3.0~rc5)
linux-manta Launchpad, Ubuntu, Debian	lucid	Does not exist
	precise	Does not exist
	quantal	Does not exist
	saucy	Ignored
	trusty	Does not exist (trusty was not-affected [3.4.0-4.19])
	upstream	Released (3.0~rc5)
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
	precise	Does not exist
	quantal	Does not exist
	saucy	Does not exist
	trusty	Does not exist
	upstream	Released (3.0~rc5)
linux-ti-omap4 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Released (2.6.38-1209.15)
	oneiric	Not vulnerable (3.0.0-1204.9)
	precise	Not vulnerable (3.0.0-1401.2)
	quantal	Not vulnerable
	saucy	Not vulnerable
	trusty	Does not exist
	upstream	Released (3.0~rc5)

References

Bugs

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 ›

Security