CVE-2012-5374

Published: 18 February 2013

The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (extended runtime of kernel code) by creating many different files whose names are associated with the same CRC32C hash value.

From the Ubuntu security team

A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(3.11.0-12.19)
Patches:
Introduced by 39279cc3d2704cfbf9c35dcb5bdd392159ae4625
Fixed by 9c52057c698fb96f8f07e7a4bcf4801a092bda89
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [was needed now end-of-life])
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [was needed now end-of-life])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [see note])
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [see note])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [was needed now end-of-life])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored [was needed now end-of-life])
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.8~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist