CVE-2020-14347

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
NISTNIST
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
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
VendorProductVersion
x.orgxorg-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
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
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347
https://lists.debian.org/debian-lts-announce/2020/08/msg00057.html
https://lists.x.org/archives/xorg-announce/2020-July/003051.html
https://security.gentoo.org/glsa/202012-01
https://usn.ubuntu.com/4488-1/
https://usn.ubuntu.com/4488-2/
https://www.debian.org/security/2020/dsa-4758
https://www.openwall.com/lists/oss-security/2020/07/31/2
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347
https://lists.debian.org/debian-lts-announce/2020/08/msg00057.html
https://lists.x.org/archives/xorg-announce/2020-July/003051.html
https://security.gentoo.org/glsa/202012-01
https://usn.ubuntu.com/4488-1/
https://usn.ubuntu.com/4488-2/
https://www.debian.org/security/2020/dsa-4758
https://www.openwall.com/lists/oss-security/2020/07/31/2