CVE-2020-10773

A stack information leak flaw was found in s390/s390x in the Linux kernels memory manager functionality, where it incorrectly writes to the /proc/sys/vm/cmm_timeout file. This flaw allows a local user to see the kernel data.
Poison Null Byte
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.4 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
redhatCNA
4.4 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
VendorProductVersion
linuxlinux_kernel
5.4.0:rc6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
focal
not-affected
eoan
ignored
bionic
Fixed 4.15.0-72.81
released
xenial
Fixed 4.4.0-170.199
released
trusty
ignored
linux-aws
focal
not-affected
eoan
ignored
bionic
Fixed 4.15.0-1056.58
released
xenial
Fixed 4.4.0-1099.110
released
trusty
ignored
linux-aws-5.0
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.3
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-hwe
focal
dne
eoan
dne
bionic
dne
xenial
Fixed 4.15.0-1056.58~16.04.1
released
trusty
dne
linux-azure
focal
not-affected
eoan
ignored
bionic
ignored
xenial
Fixed 4.15.0-1064.69
released
trusty
ignored
linux-azure-4.15
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-5.3
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-azure-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-edge
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gcp
focal
not-affected
eoan
ignored
bionic
ignored
xenial
Fixed 4.15.0-1050.53
released
trusty
dne
linux-gcp-4.15
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-5.3
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gcp-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-edge
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-4.15
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1049.52
released
xenial
dne
trusty
dne
linux-gke-5.0
focal
dne
eoan
dne
bionic
Fixed 5.0.0-1027.28~18.04.1
released
xenial
dne
trusty
dne
linux-gke-5.3
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-hwe
focal
dne
eoan
dne
bionic
Fixed 5.3.0-26.28~18.04.1
released
xenial
Fixed 4.15.0-72.81~16.04.1
released
trusty
dne
linux-hwe-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-hwe-edge
focal
dne
eoan
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-kvm
focal
not-affected
eoan
ignored
bionic
Fixed 4.15.0-1051.51
released
xenial
Fixed 4.4.0-1063.70
released
trusty
dne
linux-lts-trusty
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
ignored
linux-oem
focal
dne
eoan
ignored
bionic
Fixed 4.15.0-1065.75
released
xenial
ignored
trusty
dne
linux-oem-5.6
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-osp1
focal
dne
eoan
ignored
bionic
Fixed 5.0.0-1033.38
released
xenial
dne
trusty
dne
linux-oracle
focal
not-affected
eoan
ignored
bionic
Fixed 4.15.0-1030.33
released
xenial
Fixed 4.15.0-1030.33~16.04.1
released
trusty
dne
linux-oracle-5.0
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.3
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi-5.4
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi2
focal
ignored
eoan
ignored
bionic
Fixed 4.15.0-1052.56
released
xenial
Fixed 4.4.0-1126.135
released
trusty
dne
linux-raspi2-5.3
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-riscv
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-snapdragon
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1069.76
released
xenial
Fixed 4.4.0-1130.138
released
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10773
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8e51a6a9db94bc1fb18ae831b3dab106b5a4b5f
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10773
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8e51a6a9db94bc1fb18ae831b3dab106b5a4b5f