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CVE-2011-2479

Published: 6 October 2011

The Linux kernel before 2.6.39 does not properly create transparent huge pages in response to a MAP_PRIVATE mmap system call on /dev/zero, which allows local users to cause a denial of service (system crash) via a crafted application.

From the Ubuntu security team

It was discovered that an mmap() call with the MAP_PRIVATE flag on "/dev/zero" was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy Not vulnerable

lucid Not vulnerable

maverick Not vulnerable

natty
Released (2.6.38-10.44)
oneiric Not vulnerable
(2.6.39-1.6)
upstream
Released (2.6.39~rc6)
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Ignored
(binary supplied by "linux" now)
natty Does not exist

oneiric Does not exist

upstream
Released (2.6.39~rc6)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

upstream
Released (2.6.39~rc6)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

upstream
Released (2.6.39~rc6)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.38-10.44~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

upstream
Released (2.6.39~rc6)
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 (2.6.39~rc6)
linux-mvl-dove
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Not vulnerable

natty Does not exist

oneiric Does not exist

upstream
Released (2.6.39~rc6)
linux-ti-omap4
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick Not vulnerable

natty
Released (2.6.38-1209.17)
oneiric Not vulnerable
(3.0.0-1200.1)
upstream
Released (2.6.39~rc6)