CVE-2011-1012

Published: 01 March 2011

The ldm_parse_vmdb function in fs/partitions/ldm.c in the Linux kernel before 2.6.38-rc6-git6 does not validate the VBLK size value in the VMDB structure in an LDM partition table, which allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted partition table.

From the Ubuntu security team

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
Patches:
Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=294f6cf48666825d23c9372ef37631232746e40d
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc7)