CVE-2011-2493
Published: 24 June 2011
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel before 2.6.39 does not properly initialize a certain error-report data structure, which allows local users to cause a denial of service (OOPS) by attempting to mount a crafted ext4 filesystem.
From the Ubuntu Security Team
Sami Liedes discovered that ext4 did not correctly handle missing root inodes. A local attacker could trigger the mount of a specially crafted filesystem to cause the system to crash, leading to a denial of service.
Notes
| Author | Note |
|---|---|
| apw | this was introduced in v2.6.36-rc1 by commit 66e61a9e9504f61b9a928c9055368c81da613a50 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
hardy |
Not vulnerable
|
| lucid |
Not vulnerable
|
|
| maverick |
Not vulnerable
|
|
| natty |
Released
(2.6.38-11.47)
|
|
| oneiric |
Not vulnerable
(2.6.39-0.3)
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
Patches: Introduced by 66e61a9e9504f61b9a928c9055368c81da613a50 |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Not vulnerable
|
|
| maverick |
Ignored
(binary supplied by "linux" now)
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
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
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
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
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.38-11.49~lucid1)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Not vulnerable
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Not vulnerable
|
|
| maverick |
Not vulnerable
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39~rc3)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Does not exist
|
|
| maverick |
Not vulnerable
|
|
| natty |
Released
(2.6.38-1209.15)
|
|
| oneiric |
Not vulnerable
(3.0.0-1204.9)
|
|
| upstream |
Released
(2.6.39~rc3)
|
|