CVE-2014-5045
Published: 1 August 2014
The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.
From the Ubuntu Security Team
Vasily Averin discover a reference count flaw during attempts to umount in conjunction with a symlink. A local user could exploit this flaw to cause a denial of service (memory consumption or use after free) or possibly have other unspecified impact.
Notes
Author | Note |
---|---|
jdstrand | android kernels (goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 13.10 preview kernels android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
lucid |
Not vulnerable
|
precise |
Not vulnerable
|
|
trusty |
Released
(3.13.0-35.62)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Not vulnerable
(3.16.0-6.11)
|
|
vivid |
Not vulnerable
(3.16.0-23.31)
|
|
wily |
Not vulnerable
(3.19.0-15.15)
|
|
Patches: Introduced by 8033426e6bdb2690d302872ac1e1fadaec1a5581 |
||
linux-2.6 Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-armadaxp Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-ec2 Launchpad, Ubuntu, Debian |
lucid |
Not vulnerable
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
lucid |
Ignored
(reached end-of-life, does not affect buildd)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-grouper Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Ignored
(reached end-of-life)
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Ignored
(abandoned)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Ignored
(abandoned)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Ignored
(abandoned)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-raring Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Released
(3.13.0-35.62~precise1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-manta Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
lucid |
Ignored
(reached end-of-life)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
lucid |
Ignored
(abandoned)
|
precise |
Ignored
(abandoned)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
vivid |
Does not exist
|
|
wily |
Not vulnerable
(4.2.0-1008.12)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.16~rc7)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|