CVE-2020-14347

EUVD-2020-6491
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
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:H/I:N/A:N
redhatCNA
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
Affected Products (NVD)
VendorProductVersion
x.orgx_server
𝑥
< 1.20.9
debiandebian_linux
9.0
debiandebian_linux
10.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bookworm
2:21.1.7-3+deb12u7
fixed
bookworm (security)
2:21.1.7-3+deb12u8
fixed
bullseye
2:1.20.11-1+deb11u13
fixed
bullseye (security)
2:1.20.11-1+deb11u14
fixed
sid
2:21.1.14-1
fixed
trixie
2:21.1.14-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xorg
bionic
not-affected
focal
not-affected
trusty
dne
xenial
not-affected
xorg-hwe-16.04
bionic
dne
focal
dne
trusty
dne
xenial
not-affected
xorg-server
bionic
Fixed 2:1.19.6-1ubuntu4.5
released
focal
Fixed 2:1.20.8-2ubuntu2.3
released
trusty
Fixed 2:1.15.1-0ubuntu2.11+esm2
released
xenial
Fixed 2:1.18.4-0ubuntu0.9
released
xorg-server-hwe-16.04
bionic
dne
focal
dne
trusty
dne
xenial
Fixed 2:1.19.6-1ubuntu4.1~16.04.3
released
xorg-server-hwe-18.04
bionic
Fixed 2:1.20.8-2ubuntu2.2~18.04.2
released
focal
dne
trusty
dne
xenial
dne
xorg-server-lts-utopic
bionic
dne
focal
dne
trusty
dne
xenial
dne
xorg-server-lts-vivid
bionic
dne
focal
dne
trusty
dne
xenial
dne
xorg-server-lts-wily
bionic
dne
focal
dne
trusty
dne
xenial
dne
xorg-server-lts-xenial
bionic
dne
focal
dne
trusty
dne
xenial
dne