CVE-2012-4508

Published: 21 December 2012

Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from a deleted file by reading an extent that was not properly marked as uninitialized.

From the Ubuntu security team

Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by dee1f973ca341c266229faa5a1a5bb268bed3531
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc3)