CVE-2016-0821
Published: 12 March 2016
The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.
From the Ubuntu Security Team
Zach Riggle discovered that the Linux kernel's list poison feature did not take into account the mmap_min_addr value. A local attacker could use this to bypass the kernel's poison-pointer protection mechanism while attempting to exploit an existing kernel vulnerability.
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 |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
precise |
Released
(3.2.0-102.142)
|
trusty |
Released
(3.13.0-86.130)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Released
(4.2.0-36.41)
|
|
xenial |
Not vulnerable
(4.3.0-1.10)
|
|
yakkety |
Not vulnerable
(4.4.0-21.37)
|
|
zesty |
Not vulnerable
(4.8.0-22.24)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was released [3.2.0-1665.90])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.3~rc1)
|
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
xenial |
Not vulnerable
(4.4.0-1003.3)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Ignored
(abandoned)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [end-of-life])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
precise |
Released
(3.13.0-86.130~precise1)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [3.16.0-71.91~14.04.1])
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [3.19.0-59.65~14.04.1])
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was released [4.2.0-36.41~14.04.1])
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Ignored
(reached end-of-life)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was ignored [abandoned])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Released
(4.2.0-1029.37)
|
|
xenial |
Not vulnerable
(4.3.0-1006.6)
|
|
yakkety |
Not vulnerable
(4.4.0-1009.10)
|
|
zesty |
Not vulnerable
(4.8.0-1013.15)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-1012.12)
|
|
yakkety |
Not vulnerable
(4.4.0-1012.12)
|
|
zesty |
Not vulnerable
(4.4.0-1029.32)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
precise |
Does not exist
(precise was released [3.2.0-1480.106])
|
trusty |
Does not exist
|
|
upstream |
Released
(4.3~rc1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | High |
Availability impact | None |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0821
- http://www.openwall.com/lists/oss-security/2015/05/02/6
- http://source.android.com/security/bulletin/2016-03-01.html
- https://ubuntu.com/security/notices/USN-2971-2
- https://ubuntu.com/security/notices/USN-2971-3
- https://ubuntu.com/security/notices/USN-2971-1
- https://ubuntu.com/security/notices/USN-2970-1
- https://ubuntu.com/security/notices/USN-2969-1
- https://ubuntu.com/security/notices/USN-2967-2
- https://ubuntu.com/security/notices/USN-2967-1
- https://ubuntu.com/security/notices/USN-2968-1
- https://ubuntu.com/security/notices/USN-2968-2
- NVD
- Launchpad
- Debian