CVE-2019-19767

Priority
Description
The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as
demonstrated by use-after-free errors in __ext4_expand_extra_isize and
ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka
CID-4ea99936a163.
Ubuntu-Description
It was discovered that the ext4 file system implementation in the Linux
kernel did not properly handle certain conditions. An attacker could use
this to specially craft an ext4 file system that, when mounted, could cause
a denial of service (system crash) or possibly execute arbitrary code.
Notes
Package
Source: linux (LP Ubuntu Debian)
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (3.0.0-12.20)
Ubuntu 14.04 ESM (Trusty Tahr):not-affected (3.11.0-12.19)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-16.19)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-87.87)
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-40.32)
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-9.12)
Patches:
Introduced by
c03b45b853f5829816d871283c792e7527a7ded1
Fixed by
4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
Introduced by
7bc04c5c2cc467c5b40f2b03ba08da174a0d5fa7
Fixed by
4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):not-affected (4.4.0-1002.2)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1059.61)
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-1011.12)
Ubuntu 20.04 (Focal Fossa):not-affected
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1024.27~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.15.0-1059.61~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):ignored (was needed ESM criteria)
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):pending (5.0.0-1029.31~18.04.1)
Ubuntu 19.10 (Eoan Ermine):needed
Ubuntu 20.04 (Focal Fossa):needed
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):needs-triage
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.15.0-1053.57)
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1029.30~18.04.1)
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-1012.13)
Ubuntu 20.04 (Focal Fossa):needed
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):pending (5.3.0-1012.13~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):needs-triage
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1051.54)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1029.30~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.15.0-87.87~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):pending (5.3.0-40.32~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):needs-triage
Ubuntu 18.04 LTS (Bionic Beaver):ignored (was needs-triage now end-of-life)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1004.9)
Ubuntu 18.04 LTS (Bionic Beaver):needed
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-1010.11)
Ubuntu 20.04 (Focal Fossa):needed
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (3.13.0-24.46~precise1)
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):not-affected (4.4.0-13.29~14.04.1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (was needs-triage now end-of-life)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1071.81)
Ubuntu 19.10 (Eoan Ermine):needed
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):DNE
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):not-affected (5.4.0-1002.4)
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):pending (5.0.0-1037.42)
Ubuntu 19.10 (Eoan Ermine):needed
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):pending (4.15.0-1032.35~16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1032.35)
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-1009.10)
Ubuntu 20.04 (Focal Fossa):needed
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):released (5.0.0-1010.15~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-1013.19)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1055.59)
Ubuntu 19.10 (Eoan Ermine):pending (5.3.0-1018.20)
Ubuntu 20.04 (Focal Fossa):needed
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 18.04 LTS (Bionic Beaver):pending (5.3.0-1018.20~18.04.1)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
Package
Upstream:needed
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Ubuntu 18.04 LTS (Bionic Beaver):pending (4.15.0-1072.79)
Ubuntu 19.10 (Eoan Ermine):DNE
Ubuntu 20.04 (Focal Fossa):DNE
More Information

Updated: 2020-02-11 02:14:44 UTC (commit 73c2c74a77e4204acee4efe342b25c992c3b6f04)