CVE-2019-19769
Published: 12 December 2019
In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function (related to include/trace/events/lock.h).
From the Ubuntu Security Team
Tristan Madani discovered that the file locking implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service or expose sensitive information.
Notes
Author | Note |
---|---|
sbeattie | first attempted fix was 6d390e4b5d48ec03bb87e63cf0a2bff5f4e116da but that showed performance issues in synthetic benchmarks, more complex fix is dcf23ac3e846ca0cf626c155a0e3fcbbcf4fae8a may be introduced by 16306a61d3b7c433c7a127ec6224867b88ece687 no confirmation that the fixes listed actually address the reporter's issue the conservative fix for this issue may be to just apply 6d390e4b5d48ec03bb87e63cf0a2bff5f4e116da |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.13.0-16.19)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-53.47)
|
|
focal |
Not vulnerable
(5.4.0-24.28)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.2.0-16.19)
|
|
Patches: Introduced by 16306a61d3b7c433c7a127ec6224867b88ece687 Introduced by 16306a61d3b7c433c7a127ec6224867b88ece687 |
||
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.15.0-1030.31~16.04.1)
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1022.23)
|
|
focal |
Not vulnerable
(5.4.0-1009.9)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1019.21~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1082.92)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1019.21)
|
|
focal |
Not vulnerable
(5.4.0-1008.8)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1022.23~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1020.22)
|
|
focal |
Not vulnerable
(5.4.0-1008.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
linux-gcp-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1071.81)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1020.22~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1030.32)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1037.38)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1020.22~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-53.47~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Ignored
(end of life, was needs-triage)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1017.19)
|
|
focal |
Not vulnerable
(5.4.0-1007.7)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.3)
|
disco |
Ignored
(end of life)
|
|
eoan |
Not vulnerable
(4.15.0-1035.40)
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.6.0-1007.7)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1052.57)
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1007.9)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1018.20)
|
|
focal |
Not vulnerable
(5.4.0-1008.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.15.0-1007.9~16.04.1)
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1018.20~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-raspi Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-1008.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.13.0-1005.5)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.3.0-1025.27)
|
|
focal |
Ignored
(end of life, was needs-triage)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.2.0-1013.19)
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1026.28~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-riscv Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-24.28)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Does not exist
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.4.0-1077.82)
|
disco |
Ignored
(end of life)
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.6~rc7)
|
|
xenial |
Not vulnerable
(4.4.0-1013.15)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.7 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | High |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |