CVE-2019-11833
Published: 15 May 2019
fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.
From the Ubuntu security team
It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory).
Priority
Medium
CVSS 3 base score: 5.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-55.60)
|
| cosmic |
Ignored
(was pending \[4.18.0-26.27\] now end-of-life)
|
|
| disco |
Released
(5.0.0-21.22)
|
|
| eoan |
Not vulnerable
(5.2.0-8.9)
|
|
| precise |
Ignored
(was needs-triage ESM criteria)
|
|
| trusty |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.4.0-157.185)
|
|
|
Patches: Introduced by a86c61812637c7dd0c57e29880cffd477b62f2e7 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1047.49)
|
| cosmic |
Ignored
(was pending \[4.18.0-1021.25\] now end-of-life)
|
|
| disco |
Released
(5.0.0-1011.12)
|
|
| eoan |
Not vulnerable
(5.0.0-1011.12)
|
|
| precise |
Does not exist
|
|
| trusty |
Released
(4.4.0-1054.58)
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.4.0-1090.101)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1021.24~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-1047.49~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1025.27~18.04.1)
|
| cosmic |
Ignored
(was pending \[4.18.0-1025.27\] now end-of-life)
|
|
| disco |
Released
(5.0.0-1012.12)
|
|
| eoan |
Not vulnerable
(5.0.0-1012.12)
|
|
| precise |
Does not exist
|
|
| trusty |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-1051.56)
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1007.8~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1025.27~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-1051.56)
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1037.39)
|
| cosmic |
Ignored
(was pending \[4.18.0-1016.17\] now end-of-life)
|
|
| disco |
Released
(5.0.0-1011.11)
|
|
| eoan |
Not vulnerable
(5.0.0-1011.11)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-1037.39~16.04.1)
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1008.9~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1037.39)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(end-of-life)
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1037.39)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1011.11~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(end-of-life)
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-23.24~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-55.60~16.04.2)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was pending \[5.3.0-19.20~18.04.2\] now end-of-life)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-55.60~16.04.2)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1039.39)
|
| cosmic |
Ignored
(was pending \[4.18.0-1017.18\] now end-of-life)
|
|
| disco |
Released
(5.0.0-1011.12)
|
|
| eoan |
Not vulnerable
(5.0.0-1011.12)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.4.0-1052.59)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Ignored
(was needs-triage ESM criteria)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Released
(4.4.0-164.192~14.04.1)
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1050.57)
|
| cosmic |
Ignored
(reached end-of-life)
|
|
| disco |
Released
(4.15.0-1050.57)
|
|
| eoan |
Released
(4.15.0-1050.57)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
|
linux-oem-5.4 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1015.16)
|
| disco |
Ignored
(was pending \[5.0.0-1015.16\] now end-of-life)
|
|
| eoan |
Released
(5.0.0-1018.20)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1018.20)
|
| cosmic |
Ignored
(was pending \[4.15.0-1018.20\] now end-of-life)
|
|
| disco |
Released
(4.15.0-1018.20)
|
|
| eoan |
Not vulnerable
(4.15.0-1018.20)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.15.0-1018.20~16.04.1)
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1007.12~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1041.44)
|
| cosmic |
Ignored
(was pending \[4.18.0-1019.22\] now end-of-life)
|
|
| disco |
Released
(5.0.0-1013.13)
|
|
| eoan |
Not vulnerable
(5.0.0-1013.13)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.4.0-1117.126)
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1017.19~18.04.1)
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1058.64)
|
| cosmic |
Does not exist
|
|
| disco |
Released
(5.0.0-1017.18)
|
|
| eoan |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.2~rc1)
|
|
| xenial |
Released
(4.4.0-1121.127)
|
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11833
- https://github.com/torvalds/linux/commit/592acbf16821288ecdc4192c47e3774a4c48bb64
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=592acbf16821288ecdc4192c47e3774a4c48bb64
- https://ubuntu.com/security/notices/USN-4068-1
- https://ubuntu.com/security/notices/USN-4068-2
- https://ubuntu.com/security/notices/USN-4069-1
- https://ubuntu.com/security/notices/USN-4076-1
- https://ubuntu.com/security/notices/USN-4069-2
- https://ubuntu.com/security/notices/USN-4095-2
- https://ubuntu.com/security/notices/USN-4118-1
- NVD
- Launchpad
- Debian