CVE-2019-20812

EUVD-2019-11349
An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
< 5.4.7
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 4.15.0-88.88
released
eoan
Fixed 5.3.0-40.32
released
focal
not-affected
groovy
not-affected
trusty
ignored
xenial
Fixed 4.4.0-173.203
released
linux-aws
bionic
Fixed 4.15.0-1060.62
released
eoan
Fixed 5.3.0-1011.12
released
focal
not-affected
groovy
not-affected
trusty
Fixed 4.4.0-1061.65
released
xenial
Fixed 4.4.0-1101.112
released
linux-aws-5.0
bionic
ignored
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-aws-5.3
bionic
not-affected
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 4.15.0-1060.62~16.04.1
released
linux-azure
bionic
ignored
eoan
Fixed 5.3.0-1013.14
released
focal
not-affected
groovy
not-affected
trusty
Fixed 4.15.0-1071.76~14.04.1
released
xenial
Fixed 4.15.0-1071.76
released
linux-azure-4.15
bionic
not-affected
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-azure-5.3
bionic
Fixed 5.3.0-1013.14~18.04.1
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 5.3.0-1012.13
released
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1055.59
released
linux-gcp-4.15
bionic
not-affected
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gcp-5.3
bionic
Fixed 5.3.0-1012.13~18.04.1
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 4.15.0-1052.55
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.0
bionic
Fixed 5.0.0-1030.31
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-gke-5.3
bionic
Fixed 5.3.0-1012.13~18.04.1
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 5.3.0-40.32~18.04.1
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.15.0-88.88~16.04.1
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 4.15.0-1053.53
released
eoan
Fixed 5.3.0-1010.11
released
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.4.0-1065.72
released
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
Fixed 4.4.0-173.203~14.04.1
released
xenial
dne
linux-oem
bionic
Fixed 4.15.0-1073.83
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
not-affected
groovy
dne
trusty
dne
xenial
dne
linux-oem-osp1
bionic
Fixed 5.0.0-1039.44
released
eoan
ignored
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle
bionic
Fixed 4.15.0-1033.36
released
eoan
Fixed 5.3.0-1009.10
released
focal
not-affected
groovy
not-affected
trusty
dne
xenial
Fixed 4.15.0-1033.36~16.04.1
released
linux-oracle-5.0
bionic
ignored
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-oracle-5.3
bionic
not-affected
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
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 4.15.0-1055.59
released
eoan
Fixed 5.3.0-1018.20
released
focal
ignored
groovy
dne
trusty
dne
xenial
Fixed 4.4.0-1128.137
released
linux-raspi2-5.3
bionic
Fixed 5.3.0-1018.20~18.04.1
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
dne
linux-riscv
bionic
dne
eoan
dne
focal
not-affected
groovy
not-affected
trusty
dne
xenial
dne
linux-snapdragon
bionic
Fixed 4.15.0-1072.79
released
eoan
dne
focal
dne
groovy
dne
trusty
dne
xenial
Fixed 4.4.0-1132.140
released
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b43d1f9f7067c6759b1051e8ecb84e82cef569fe
https://www.oracle.com/security-alerts/cpuApr2021.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b43d1f9f7067c6759b1051e8ecb84e82cef569fe
https://www.oracle.com/security-alerts/cpuApr2021.html