CVE-2012-0055
Published: 18 January 2012
OverlayFS in the Linux kernel before 3.0.0-16.28, as used in Ubuntu 10.0.4 LTS and 11.10, is missing inode security checks which could allow attackers to bypass security restrictions and perform unauthorized actions.
From the Ubuntu Security Team
Andy Whitcroft discovered a that the Overlayfs filesystem was not doing the extended permission checks needed by cgroups and Linux Security Modules (LSMs). A local user could exploit this to by-pass security policy and access files that should not be accessible.
Notes
Author | Note |
---|---|
jjohansen | removed https://launchpad.net/bugs/915941 link as it was causing script to fail |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
hardy |
Not vulnerable
|
|
lucid |
Not vulnerable
|
|
maverick |
Not vulnerable
|
|
natty |
Not vulnerable
|
|
oneiric |
Released
(3.0.0-16.27)
|
|
precise |
Not vulnerable
|
|
quantal |
Not vulnerable
|
|
saucy |
Not vulnerable
|
|
trusty |
Not vulnerable
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
Patches: Introduced by 549ffd5a07c9098a6a1c7a82e7fd731a132fc1a0 |
||
linux-ec2 Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
hardy |
Does not exist
|
|
lucid |
Not vulnerable
|
|
maverick |
Ignored
(end of life)
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
hardy |
Does not exist
|
|
lucid |
Not vulnerable
|
|
maverick |
Not vulnerable
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
lucid |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Ignored
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-gke Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
|
|
upstream |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Not vulnerable
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Not vulnerable
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-grouper Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Ignored
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Not vulnerable
|
|
utopic |
Ignored
(end of life)
|
|
vivid |
Does not exist
|
|
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 |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Not vulnerable
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Not vulnerable
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(3.0.0-16.28~lucid1)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
saucy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
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 not-affected)
|
|
upstream |
Not vulnerable
|
|
vivid |
Does not exist
|
|
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
|
|
upstream |
Not vulnerable
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Ignored
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Ignored
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Not vulnerable
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
quantal |
Does not exist
|
|
saucy |
Ignored
|
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Not vulnerable
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
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 |
Not vulnerable
|
|
vivid |
Does not exist
|
|
wily |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
wily |
Does not exist
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Does not exist
|
|
maverick |
Not vulnerable
|
|
natty |
Not vulnerable
|
|
oneiric |
Released
(3.0.0-1207.16)
|
|
precise |
Not vulnerable
|
|
quantal |
Not vulnerable
|
|
saucy |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |