CVE-2018-1092
Published: 01 April 2018
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
From the Ubuntu security team
Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service (system crash) when mounted.
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-23.25)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.4.0-128.154)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.13.0-157.207)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1010.10)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.4.0-1061.70)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-1023.23)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1013.13)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.15.0-1013.13~16.04.2)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-1003.3~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.15.0-1013.13)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needs-triage ESM criteria)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1009.9)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.13.0-1019.23)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needed now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(was needed now end-of-life)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.13.0-45.50~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(4.18.0-8.9~18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.13.0-45.50~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1011.11)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.4.0-1027.32)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| 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
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [out of standard support])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(4.4.0-128.154~14.04.1)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1008.11)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.13.0-1030.33)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(4.15.0-1012.13)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.4.0-1091.99)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.17~rc1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Released
(4.4.0-1094.99)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1092
- https://bugzilla.kernel.org/show_bug.cgi?id=199179
- https://ubuntu.com/security/notices/USN-3676-1
- https://ubuntu.com/security/notices/USN-3676-2
- https://ubuntu.com/security/notices/USN-3677-1
- https://ubuntu.com/security/notices/USN-3677-2
- https://ubuntu.com/security/notices/USN-3678-1
- https://ubuntu.com/security/notices/USN-3678-2
- https://ubuntu.com/security/notices/USN-3678-3
- https://ubuntu.com/security/notices/USN-3678-4
- https://ubuntu.com/security/notices/USN-3754-1
- NVD
- Launchpad
- Debian