Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2010-4248

Published: 30 November 2010

Race condition in the __exit_signal function in kernel/exit.c in the Linux kernel before 2.6.37-rc2 allows local users to cause a denial of service via vectors related to multithreaded exec, the use of a thread group leader in kernel/posix-cpu-timers.c, and the selection of a new thread group leader in the de_thread function in fs/exec.c.

From the Ubuntu Security Team

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service.

Priority

Medium

Status

Package Release Status
linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-112.30)
lucid
Released (2.6.31-609.26)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-28.86)
karmic
Released (2.6.31-22.73)
lucid
Released (2.6.32-29.57)
maverick
Released (2.6.35-27.47)
natty
Released (2.6.37-5.13)
upstream
Released (2.6.37~rc2)
Patches:
upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e0a70217107e6f9844628120412cb27bb4cea194
hardy: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4248/patches/hardy/linux/0001-posix-cpu-timers-workaround-to-suppress-the-problems-w.txt
karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4248/patches/karmic/linux/0001-posix-cpu-timers-workaround-to-suppress-the-problems-w.txt
lucid: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4248/patches/lucid/linux/0001-posix-cpu-timers-workaround-to-suppress-the-problems-w.txt
linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic
Released (2.6.31-307.27)
lucid
Released (2.6.32-313.25)
maverick Ignored
(end of life)
natty Does not exist

upstream
Released (2.6.37~rc2)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid
Released (2.6.35-28.50~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(2.6.38-1.27~lucid1)
maverick Does not exist

natty Does not exist

upstream
Released (2.6.37~rc2)
linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid
Released (2.6.32-214.30)
maverick
Released (2.6.32-414.30)
natty Does not exist

upstream
Released (2.6.37~rc2)
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

natty Does not exist

upstream
Released (2.6.37~rc2)
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 Not vulnerable
(2.6.38-1201.2)
upstream
Released (2.6.37~rc2)