CVE-2020-14346

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Wrap or Wraparound
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
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
redhatCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 29%
VendorProductVersion
x.orgxorg-server
𝑥
< 1.20.9
canonicalubuntu_linux
14.04
redhatenterprise_linux
6.0
redhatenterprise_linux
7.0
redhatenterprise_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bullseye
2:1.20.11-1+deb11u13
fixed
bullseye (security)
2:1.20.11-1+deb11u14
fixed
bookworm
2:21.1.7-3+deb12u7
fixed
bookworm (security)
2:21.1.7-3+deb12u8
fixed
sid
2:21.1.14-1
fixed
trixie
2:21.1.14-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xorg
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
xorg-hwe-16.04
focal
dne
bionic
dne
xenial
not-affected
trusty
dne
xorg-server
focal
Fixed 2:1.20.8-2ubuntu2.3
released
bionic
Fixed 2:1.19.6-1ubuntu4.5
released
xenial
Fixed 2:1.18.4-0ubuntu0.9
released
trusty
Fixed 2:1.15.1-0ubuntu2.11+esm2
released
xorg-server-hwe-16.04
focal
dne
bionic
dne
xenial
Fixed 2:1.19.6-1ubuntu4.1~16.04.3
released
trusty
dne
xorg-server-hwe-18.04
focal
dne
bionic
Fixed 2:1.20.8-2ubuntu2.2~18.04.2
released
xenial
dne
trusty
dne
xorg-server-lts-utopic
focal
dne
bionic
dne
xenial
dne
trusty
dne
xorg-server-lts-vivid
focal
dne
bionic
dne
xenial
dne
trusty
dne
xorg-server-lts-wily
focal
dne
bionic
dne
xenial
dne
trusty
dne
xorg-server-lts-xenial
focal
dne
bionic
dne
xenial
dne
trusty
dne