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CVE-2015-7312

Published: 23 September 2015

Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c and mm/msync.c.

From the Ubuntu security team

Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by local-2015-7312-fix
linux-2.6
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Not vulnerable
(issue now fixed upstream)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-ec2
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-flo
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-fsl-imx51
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-gke
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Not vulnerable
(issue now fixed upstream)
linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Not vulnerable
(issue now fixed upstream)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Not vulnerable
(issue now fixed upstream)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-linaro-shared
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-quantal
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-saucy
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-utopic
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-vivid
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-wily
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-maguro
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-mako
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-mvl-dove
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-qcm-msm
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(issue now fixed upstream)
upstream Needed

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable

upstream Not vulnerable
(issue now fixed upstream)
linux-ti-omap4
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream Needed