CVE-2012-2123
Published: 19 April 2012
The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.
From the Ubuntu security team
Steve Grubb reported a flaw with Linux fscaps (file system base capabilities) when used to increase the permissions of a process. For application on which fscaps are in use a local attacker can disable address space randomization to make attacking the process with raised privileges easier.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-16.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(3.11.0-12.19)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by d52fc5dde171f030170a6cb78034d166b13c9445 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1001.10)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-1002.2)
|
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(3.4.0-5.22)
|
|
| 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
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1003.3)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(3.4.0-4.27)
|
|
| 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
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-raring Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| 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
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [4.2.0-18.22~14.04.1])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(3.4.0-7.40)
|
|
| 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
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| 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
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-1013.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1012.12)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.4~rc4)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2123
- http://www.openwall.com/lists/oss-security/2012/04/20/6
- https://usn.ubuntu.com/usn/usn-1445-1
- https://usn.ubuntu.com/usn/usn-1448-1
- https://usn.ubuntu.com/usn/usn-1452-1
- https://usn.ubuntu.com/usn/usn-1453-1
- https://usn.ubuntu.com/usn/usn-1455-1
- https://usn.ubuntu.com/usn/usn-1457-1
- https://usn.ubuntu.com/usn/usn-1459-1
- https://usn.ubuntu.com/usn/usn-1460-1
- https://usn.ubuntu.com/usn/usn-1470-1
- https://usn.ubuntu.com/usn/usn-1530-1
- NVD
- Launchpad
- Debian