Description
A flaw was found in the Linux kernel's ext4 filesystem. A local user can
cause an out-of-bound access in ext4_get_group_info function, a denial of
service, and a system crash by mounting and operating on a crafted ext4
filesystem image.
Ubuntu-Description
Wen Xu discovered that the ext4 filesystem implementation in the Linux
kernel did not properly keep meta-data information consistent in some
situations. An attacker could use this to construct a malicious ext4 image
that, when mounted, could cause a denial of service (system crash).
Notes
sbeattie | possible reproducer in bug report |
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
|
Ubuntu 16.04 LTS (Xenial Xerus): | ignored
(was needed ESM criteria)
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | ignored
(abandoned)
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
|
Ubuntu 16.04 LTS (Xenial Xerus): | ignored
(end-of-life)
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | ignored
(end-of-life)
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | ignored
(was needed ESM criteria)
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [out of standard support])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [out of standard support])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [out of standard support])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | released
(4.4.0-134.160~14.04.1)
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | ignored
(abandoned)
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Package
Upstream: | released
(4.18~rc4)
|
Ubuntu 12.04 ESM (Precise Pangolin): | DNE
|
Ubuntu 14.04 ESM (Trusty Tahr): | DNE
(trusty was ignored [abandoned])
|
Ubuntu 16.04 LTS (Xenial Xerus): | DNE
|
Ubuntu 18.04 LTS (Bionic Beaver): | DNE
|
Ubuntu 19.04 (Disco Dingo): | DNE
|
Updated: 2019-12-05 18:50:10 UTC (commit dd38ff22974aae499eb50644b9d5a2817483cbdb)