CVE-2011-1182

Published: 20 April 2011

kernel/signal.c in the Linux kernel before 2.6.39 allows local users to spoof the uid and pid of a signal sender via a sigqueueinfo system call.

From the Ubuntu Security Team

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Not vulnerable
	karmic	Ignored
	lucid	Released (2.6.32-32.62)
	maverick	Released (2.6.35-29.51)
	natty	Released (2.6.38-8.41)
	upstream	Released (2.6.39~rc1)
	Patches: upstream: http://git.kernel.org/linus/da48524eb20662618854bb3df2db01fc65f3070c upstream: http://git.kernel.org/linus/243b422af9ea9af4ead07a8ad54c90d4f9b6081a
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-316.30)
	maverick	Ignored (end of life)
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.31-609.26)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Released (2.6.35-30.54~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-8.41~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-217.34)
	maverick	Released (2.6.32-417.34)
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Ignored
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39~rc1)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Released (2.6.38-1208.12)
	upstream	Released (2.6.39~rc1)

References

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