CVE-2016-4581
Published: 23 May 2016
fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.
From the Ubuntu Security Team
It was discovered that in some situations the Linux kernel did not handle propagated mounts correctly. A local unprivileged attacker could use this to cause a denial of service (system crash).
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 |
Not vulnerable
|
trusty |
Released
(3.13.0-87.133)
|
|
wily |
Released
(4.2.0-38.45)
|
|
xenial |
Released
(4.4.0-24.43)
|
|
yakkety |
Not vulnerable
(4.4.0-23.41)
|
|
upstream |
Released
(4.6~rc7)
|
|
Patches: Introduced by f2ebb3a921c1ca1e2ddd9242e95a1989a50c4c68 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
trusty |
Not vulnerable
(4.4.0-1002.2)
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
precise |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-gke Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.4.0-1003.3)
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
precise |
Released
(3.13.0-88.135~precise1)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(3.16.0-73.95~14.04.1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(3.19.0-61.69~14.04.1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(4.2.0-38.45~14.04.1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(4.4.0-24.43~14.04.1)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-maguro Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-mako Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-manta Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
wily |
Not vulnerable
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
wily |
Released
(4.2.0-1031.41)
|
|
xenial |
Released
(4.4.0-1012.16)
|
|
yakkety |
Not vulnerable
(4.4.0-1011.14)
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Released
(4.4.0-1015.18)
|
|
yakkety |
Not vulnerable
(4.4.0-1014.16)
|
|
upstream |
Released
(4.6~rc7)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
upstream |
Released
(4.6~rc7)
|
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 | None |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4581
- https://marc.info/?l=linux-fsdevel&m=146246187014403&w=2
- https://ubuntu.com/security/notices/USN-2989-1
- https://ubuntu.com/security/notices/USN-2998-1
- https://ubuntu.com/security/notices/USN-3000-1
- https://ubuntu.com/security/notices/USN-3001-1
- https://ubuntu.com/security/notices/USN-3002-1
- https://ubuntu.com/security/notices/USN-3003-1
- https://ubuntu.com/security/notices/USN-3004-1
- https://ubuntu.com/security/notices/USN-3005-1
- https://ubuntu.com/security/notices/USN-3006-1
- https://ubuntu.com/security/notices/USN-3007-1
- NVD
- Launchpad
- Debian