CVE-2019-20934

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
4.19 ≤
𝑥
< 4.19.64
linuxlinux_kernel
5.2 ≤
𝑥
≤ 5.2.17
linuxlinux_kernel
5.3:rc1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
sid
6.11.6-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
bionic
Fixed 4.15.0-60.67
released
focal
not-affected
groovy
not-affected
trusty
ignored
xenial
Fixed 4.4.0-165.193
released
linux-aws
bionic
Fixed 4.15.0-1047.49
released
focal
not-affected
groovy
not-affected
trusty
ignored
xenial
Fixed 4.4.0-1095.106
released
linux-aws-5.0
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-aws-5.3
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-aws-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-aws-hwe
bionic
dne
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.15.0-1047.49~16.04.1
released
linux-azure
bionic
ignored
focal
not-affected
groovy
not-affected
trusty
ignored
xenial
Fixed 4.15.0-1056.61
released
linux-azure-4.15
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-azure-5.3
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-azure-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-azure-edge
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp
bionic
ignored
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1041.43
released
linux-gcp-4.15
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp-5.3
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp-edge
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-4.15
bionic
Fixed 4.15.0-1041.43
released
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.0
bionic
Fixed 5.0.0-1020.20~18.04.1
released
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.3
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-hwe
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.15.0-60.67~16.04.1
released
linux-hwe-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-hwe-edge
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
ignored
linux-kvm
bionic
Fixed 4.15.0-1043.43
released
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.4.0-1059.66
released
linux-lts-trusty
bionic
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-lts-xenial
bionic
dne
focal
dne
groovy
dne
trusty
ignored
xenial
dne
linux-oem
bionic
Fixed 4.15.0-1056.65
released
focal
dne
groovy
dne
trusty
dne
xenial
ignored
linux-oem-5.6
bionic
dne
focal
not-affected
groovy
dne
trusty
dne
xenial
dne
linux-oem-osp1
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle
bionic
Fixed 4.15.0-1022.25
released
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1022.25~16.04.1
released
linux-oracle-5.0
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle-5.3
bionic
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-raspi
bionic
dne
focal
not-affected
groovy
not-affected
trusty
dne
xenial
dne
linux-raspi-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-raspi2
bionic
Fixed 4.15.0-1044.47
released
focal
ignored
groovy
dne
trusty
dne
xenial
Fixed 4.4.0-1123.132
released
linux-raspi2-5.3
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-riscv
bionic
dne
focal
not-affected
groovy
not-affected
trusty
dne
xenial
dne
linux-snapdragon
bionic
Fixed 4.15.0-1062.69
released
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.4.0-1127.135
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
kernel-azure
suse enterprise sap 12 SP5
4.12.14-16.41.1
fixed
suse enterprise sap 15 SP1
4.12.14-8.58.1
fixed
suse enterprise server 12 SP5
4.12.14-16.41.1
fixed
suse enterprise server 15 SP1
4.12.14-8.58.1
fixed
kernel-azure-base
suse enterprise sap 12 SP5
4.12.14-16.41.1
fixed
suse enterprise sap 15 SP1
4.12.14-8.58.1
fixed
suse enterprise server 12 SP5
4.12.14-16.41.1
fixed
suse enterprise server 15 SP1
4.12.14-8.58.1
fixed
kernel-default
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-default-base
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-default-kgraft
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
kernel-default-man
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-docs
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-macros
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-obs-build
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-source
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-source-azure
suse enterprise sap 12 SP5
4.12.14-16.41.1
fixed
suse enterprise sap 15 SP1
4.12.14-8.58.1
fixed
suse enterprise server 12 SP5
4.12.14-16.41.1
fixed
suse enterprise server 15 SP1
4.12.14-8.58.1
fixed
kernel-syms
suse enterprise desktop 15 SP1
4.12.14-197.78.1
fixed
suse enterprise sap 12 SP5
4.12.14-122.57.1
fixed
suse enterprise sap 15 SP1
4.12.14-197.78.1
fixed
suse enterprise server 12 SP2
4.4.121-92.149.1
fixed
suse enterprise server 12 SP3
4.4.180-94.138.1
fixed
suse enterprise server 12 SP4
4.12.14-95.68.1
fixed
suse enterprise server 12 SP5
4.12.14-122.57.1
fixed
suse enterprise server 15
4.12.14-150.66.1
fixed
suse enterprise server 15 SP1
4.12.14-197.78.1
fixed
kernel-syms-azure
suse enterprise sap 12 SP5
4.12.14-16.41.1
fixed
suse enterprise sap 15 SP1
4.12.14-8.58.1
fixed
suse enterprise server 12 SP5
4.12.14-16.41.1
fixed
suse enterprise server 15 SP1
4.12.14-8.58.1
fixed
kernel-vanilla-base
suse enterprise server 15
4.12.14-150.66.1
fixed
kgraft-patch-4_4_121-92_149-default-1
suse enterprise server 12 SP2
3.3.1
fixed
kgraft-patch-4_4_180-94_138-default-1
suse enterprise server 12 SP3
4.3.1
fixed
reiserfs-kmp-default
suse enterprise server 15
4.12.14-150.66.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
bpftool
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-abi-whitelists
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-bootwrapper
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-debug
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-debug-devel
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-devel
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-doc
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-kdump
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-kdump-devel
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-rt
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-debug
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-debug-devel
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-debug-kvm
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-devel
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-doc
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-kvm
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-trace
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-trace-devel
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-rt-trace-kvm
RHEL 7
0:3.10.0-1160.36.2.rt56.1179.el7
fixed
kernel-tools
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-tools-libs
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
kernel-tools-libs-devel
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
perf
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
python-perf
RHEL 7
0:3.10.0-1160.36.2.el7
fixed
Common Weakness Enumeration
References
https://bugs.chromium.org/p/project-zero/issues/detail?id=1913
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16d51a590a8ce3befb1308e0e7ab77f3b661af33
https://bugs.chromium.org/p/project-zero/issues/detail?id=1913
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16d51a590a8ce3befb1308e0e7ab77f3b661af33