CVE-2018-1092

Priority
Description
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.
Ubuntu-Description
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.
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needs-triage ESM criteria)
Ubuntu 14.04 LTS (Trusty Tahr):released (3.13.0-157.207)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-128.154)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-23.25)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-23.25)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-23.25)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (4.4.0-1023.23)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1061.70)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1010.10)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1010.10)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1010.10)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (4.15.0-1023.24~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1013.13~16.04.2)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1013.13)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1013.13)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1013.13)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.15.0-1013.13)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.18.0-1003.3~18.04.1)
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needs-triage ESM criteria)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-1019.23)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1009.9)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1009.9)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1009.9)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needed now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needed now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-45.50~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-45.50~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):not-affected (4.18.0-8.9~18.04.1)
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
linux-krillin:ignored (was needs-triage now end-of-life)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1027.32)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1011.11)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1011.11)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1011.11)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):ignored (was needed ESM criteria)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (4.4.0-128.154~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (abandoned)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.13.0-1030.33)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1008.11)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1008.11)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1008.11)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1091.99)
Ubuntu 18.04 LTS (Bionic Beaver):released (4.15.0-1012.13)
Ubuntu 18.10 (Cosmic Cuttlefish):not-affected (4.15.0-1021.23)
Ubuntu 19.04 (Disco Dingo):not-affected (4.15.0-1021.23)
Package
Upstream:released (4.17~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1094.99)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 18.10 (Cosmic Cuttlefish):DNE
Ubuntu 19.04 (Disco Dingo):DNE
Package
linux-vegetahd:ignored (was needs-triage now end-of-life)
More Information

Updated: 2019-01-14 22:31:14 UTC (commit 51f9b73af244ba86b9321e46e526586c25a8e060)