CVE-2016-0728
Published: 19 January 2016
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.
From the Ubuntu security team
Yevgeny Pats discovered that the session keyring implementation in the Linux kernel did not properly reference count when joining an existing session keyring. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.
Priority
High
CVSS 3 base score: 7.8
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.3.0-7.18)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.13.0-76.120)
|
|
|
Patches: Introduced by 3a50597de8635cd05133bd12c95681c82fe7b878 Fixed by 23567fd052a9abb6d67fe8e7a9ccdd9800a540f2 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.4.0-1001.10)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-1002.2)
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (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
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (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
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-raring Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was released [3.16.0-59.79~14.04.1])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was released [3.19.0-47.53~14.04.1])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was released [4.2.0-25.30~14.04.1])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (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
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored)
|
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(4.4.0-1003.4)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.5~rc1)
|
| Ubuntu 16.04 ESM (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
(4.5~rc1)
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Notes
| Author | Note |
|---|---|
| jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0728
- http://perception-point.io/2016/01/14/analysis-and-exploitation-of-a-linux-kernel-vulnerability-cve-2016-0728/
- https://ubuntu.com/security/notices/USN-2872-1
- https://ubuntu.com/security/notices/USN-2872-2
- https://ubuntu.com/security/notices/USN-2872-3
- https://ubuntu.com/security/notices/USN-2871-2
- https://ubuntu.com/security/notices/USN-2871-1
- https://ubuntu.com/security/notices/USN-2873-1
- https://ubuntu.com/security/notices/USN-2870-1
- https://ubuntu.com/security/notices/USN-2870-2
- NVD
- Launchpad
- Debian