CVE-2014-4014
Published: 23 June 2014
The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.
From the Ubuntu security team
A flaw was discovered in the Linux kernel's implementation of user namespaces with respect to inode permissions. A local user could exploit this flaw by creating a user namespace to gain administrative privileges.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
Patches: Introduced by 1a48e2ac034d47ed843081c4523b63c46b46888b Fixed by 23adbe12ef7d3d4195e80800ab36b37bee28cd03 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-raring Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc1)
|
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4014
- https://ubuntu.com/security/notices/USN-2285-1
- https://ubuntu.com/security/notices/USN-2286-1
- https://ubuntu.com/security/notices/USN-2287-1
- https://ubuntu.com/security/notices/USN-2289-1
- https://ubuntu.com/security/notices/USN-2336-1
- https://ubuntu.com/security/notices/USN-2337-1
- NVD
- Launchpad
- Debian