CVE-2011-2496

Published: 06 October 2011

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

From the Ubuntu security team

Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(3.11.0-12.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 982134ba62618c2d69fbbbd166d0a11ee3b7e3d8
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by a626ca6a656450e9f4df91d0dda238fff23285f4
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 42c36f63ac1366ab0ecc2d5717821362c259f517
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.3])
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.9])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.1.10-8.28])
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.0.0-3.18])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-3.21])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-4.19])
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc7)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist