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CVE-2014-9730

Published: 31 December 2014

The udf_pc_to_char function in fs/udf/symlink.c in the Linux kernel before 3.18.2 relies on component lengths that are unused, which allows local users to cause a denial of service (system crash) via a crafted UDF filesystem image.

From the Ubuntu Security Team

Carl H Lunde discovered that the UDF file system (CONFIG_UDF_FS) did not correctly verify the component length for symlinks. A local attacker, who is able to mount a malicous UDF file system image, could exploit this flaw to cause a denial of service (system crash) or possibly cause other undesired behaviors.

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support
Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by e237ec37ec154564f8690c5bd1795339955eeef9
linux-2.6
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-gke
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-saucy
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-mako
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (3.19~rc3)