CVE-2020-12657

EUVD-2020-4956
An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
< 5.6.5
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
jessie
not-affected
sid
6.11.6-1
fixed
stretch
not-affected
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
bionic
Fixed 4.15.0-101.102
released
eoan
Fixed 5.3.0-53.47
released
focal
Fixed 5.4.0-31.35
released
groovy
not-affected
trusty
not-affected
xenial
not-affected
linux-aws
bionic
Fixed 4.15.0-1067.71
released
eoan
Fixed 5.3.0-1019.21
released
focal
Fixed 5.4.0-1011.11
released
groovy
not-affected
trusty
not-affected
xenial
not-affected
linux-aws-5.0
bionic
ignored
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-aws-5.3
bionic
Fixed 5.3.0-1019.21~18.04.1
released
eoan
dne
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
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.15.0-1067.71~16.04.1
released
linux-azure
bionic
ignored
eoan
Fixed 5.3.0-1022.23
released
focal
Fixed 5.4.0-1012.12
released
groovy
not-affected
trusty
Fixed 4.15.0-1083.93~14.04.1
released
xenial
Fixed 4.15.0-1083.93~16.04.1
released
linux-azure-4.15
bionic
Fixed 4.15.0-1083.93
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-azure-5.3
bionic
Fixed 5.3.0-1022.23~18.04.1
released
eoan
dne
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
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-dell300x
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp
bionic
ignored
eoan
Fixed 5.3.0-1020.22
released
focal
Fixed 5.4.0-1011.11
released
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1071.81~16.04.1
released
linux-gcp-4.15
bionic
not-affected
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp-5.3
bionic
Fixed 5.3.0-1020.22~18.04.1
released
eoan
dne
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
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-4.15
bionic
Fixed 4.15.0-1059.62
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.0
bionic
Fixed 5.0.0-1037.38
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.3
bionic
Fixed 5.3.0-1020.22~18.04.1
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gkeop
bionic
dne
focal
not-affected
groovy
dne
trusty
dne
xenial
dne
linux-gkeop-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-hwe
bionic
Fixed 5.3.0-53.47~18.04.1
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.15.0-101.102~16.04.1
released
linux-hwe-5.4
bionic
not-affected
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-hwe-5.8
bionic
dne
focal
not-affected
groovy
dne
trusty
dne
xenial
dne
linux-hwe-edge
bionic
ignored
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
ignored
linux-kvm
bionic
Fixed 4.15.0-1060.61
released
eoan
Fixed 5.3.0-1017.19
released
focal
Fixed 5.4.0-1011.11
released
groovy
not-affected
trusty
dne
xenial
not-affected
linux-lts-trusty
bionic
dne
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-lts-xenial
bionic
dne
eoan
dne
focal
dne
groovy
dne
trusty
not-affected
xenial
dne
linux-oem
bionic
Fixed 4.15.0-1081.91
released
eoan
ignored
focal
dne
groovy
dne
trusty
dne
xenial
ignored
linux-oem-5.10
bionic
dne
focal
not-affected
groovy
dne
trusty
dne
xenial
dne
linux-oem-5.6
bionic
dne
eoan
dne
focal
Fixed 5.6.0-1010.10
released
groovy
dne
trusty
dne
xenial
dne
linux-oem-osp1
bionic
Fixed 5.0.0-1052.57
released
eoan
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle
bionic
Fixed 4.15.0-1039.43
released
eoan
Fixed 5.3.0-1018.20
released
focal
Fixed 5.4.0-1011.11
released
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1039.43~16.04.1
released
linux-oracle-5.0
bionic
ignored
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle-5.3
bionic
Fixed 5.3.0-1018.20~18.04.1
released
eoan
dne
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
eoan
dne
focal
Fixed 5.4.0-1011.11
released
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 4.15.0-1062.66
released
eoan
Fixed 5.3.0-1025.27
released
focal
ignored
groovy
dne
trusty
dne
xenial
not-affected
linux-raspi2-5.3
bionic
Fixed 5.3.0-1026.28~18.04.1
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-riscv
bionic
dne
eoan
dne
focal
Fixed 5.4.0-26.30
released
groovy
not-affected
trusty
dne
xenial
dne
linux-snapdragon
bionic
Fixed 4.15.0-1079.86
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
not-affected