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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

Low

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
(reached end-of-life)
lucid
Released (2.6.32-316.30)
maverick Ignored
(binary supplied by "linux" now)
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
(reached 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
(abandonded branch)
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)