CVE-2021-3472

A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. 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
NISTPrimary
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 23%
Affected Products (NVD)
VendorProductVersion
x.orgx_server
𝑥
< 1.20.11
debiandebian_linux
9.0
debiandebian_linux
10.0
redhatenterprise_linux
7.0
redhatenterprise_linux
8.0
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
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
trusty
dne
xenial
not-affected
xorg-hwe-16.04
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
not-affected
xorg-hwe-18.04
bionic
not-affected
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xorg-server
bionic
Fixed 2:1.19.6-1ubuntu4.9
released
focal
Fixed 2:1.20.9-2ubuntu1.2~20.04.2
released
groovy
Fixed 2:1.20.9-2ubuntu1.3
released
hirsute
Fixed 2:1.20.11-1ubuntu1
released
impish
Fixed 2:1.20.11-1ubuntu1
released
jammy
Fixed 2:1.20.11-1ubuntu1
released
trusty
Fixed 2:1.15.1-0ubuntu2.11+esm4
released
xenial
Fixed 2:1.18.4-0ubuntu0.12
released
xorg-server-hwe-16.04
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
Fixed 2:1.19.6-1ubuntu4.1~16.04.6
released
xorg-server-hwe-18.04
bionic
Fixed 2:1.20.8-2ubuntu2.2~18.04.5
released
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xorg-server-lts-utopic
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xorg-server-lts-vivid
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xorg-server-lts-wily
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xorg-server-lts-xenial
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
trusty
dne
xenial
dne
xwayland
bionic
dne
focal
dne
groovy
dne
hirsute
Fixed 2:21.1.1-0ubuntu1
released
impish
Fixed 2:21.1.1-0ubuntu1
released
jammy
Fixed 2:21.1.1-0ubuntu1
released
trusty
dne
xenial
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
xorg-x11-server
suse enterprise desktop 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise desktop 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise desktop 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise desktop 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise desktop 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise desktop 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise sap 12 SP5
1.19.6-10.23.1
fixed
suse enterprise sap 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise sap 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise sap 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise sap 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise sap 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise server 12 SP4
1.19.6-4.22.1
fixed
suse enterprise server 12 SP5
1.19.6-10.23.1
fixed
suse enterprise server 15
1.19.6-8.30.1
fixed
suse enterprise server 15 SP1
1.20.3-14.5.16.1
fixed
suse enterprise server 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise server 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise server 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise server 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise server 15 SP7
21.1.15-150700.3.2
fixed
xorg-x11-server-Xvfb
suse enterprise desktop 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise desktop 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise desktop 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise sap 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise sap 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise server 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise server 15 SP7
21.1.15-150700.3.2
fixed
xorg-x11-server-extra
suse enterprise desktop 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise desktop 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise desktop 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise desktop 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise desktop 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise desktop 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise sap 12 SP5
1.19.6-10.23.1
fixed
suse enterprise sap 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise sap 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise sap 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise sap 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise sap 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise sap 15 SP7
21.1.15-150700.3.2
fixed
suse enterprise server 12 SP4
1.19.6-4.22.1
fixed
suse enterprise server 12 SP5
1.19.6-10.23.1
fixed
suse enterprise server 15
1.19.6-8.30.1
fixed
suse enterprise server 15 SP1
1.20.3-14.5.16.1
fixed
suse enterprise server 15 SP2
1.20.3-22.5.25.1
fixed
suse enterprise server 15 SP3
1.20.3-22.5.25.1
fixed
suse enterprise server 15 SP4
1.20.3-150400.36.7
fixed
suse enterprise server 15 SP5
21.1.4-150500.5.1
fixed
suse enterprise server 15 SP6
21.1.11-150600.3.2
fixed
suse enterprise server 15 SP7
21.1.15-150700.3.2
fixed
xorg-x11-server-sdk
suse enterprise server 15
1.19.6-8.30.1
fixed
suse enterprise server 15 SP1
1.20.3-14.5.16.1
fixed
xorg-x11-server-wayland
suse enterprise desktop 15 SP4
1.20.3-22.5.25.1
fixed
suse enterprise sap 15 SP4
1.20.3-22.5.25.1
fixed
suse enterprise server 15 SP4
1.20.3-22.5.25.1
fixed
suse enterprise workstation 15 SP4
1.20.3-22.5.25.1
fixed
xwayland
suse enterprise desktop 15 SP4
21.1.4-150400.1.12
fixed
suse enterprise sap 15 SP4
21.1.4-150400.1.12
fixed
suse enterprise server 15 SP4
21.1.4-150400.1.12
fixed
suse enterprise workstation 15 SP4
21.1.4-150400.1.12
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
xorg-x11-server-Xdmx
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-Xephyr
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-Xnest
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-Xorg
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-Xvfb
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-Xwayland
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-common
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-devel
RHEL 7
0:1.20.4-16.el7_9
fixed
xorg-x11-server-source
RHEL 7
0:1.20.4-16.el7_9
fixed
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2021/04/13/1
https://bugzilla.redhat.com/show_bug.cgi?id=1944167
https://gitlab.freedesktop.org/xorg/xserver/-/commit/7aaf54a1884f71dc363f0b884e57bcb67407a6cd
https://lists.debian.org/debian-lts-announce/2021/04/msg00013.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/
https://lists.x.org/archives/xorg-announce/2021-April/003080.html
https://lists.x.org/archives/xorg-announce/2021-April/003080.html
https://seclists.org/oss-sec/2021/q2/20
https://security.gentoo.org/glsa/202104-02
https://www.debian.org/security/2021/dsa-4893
https://www.tenable.com/plugins/nessus/148701
https://www.zerodayinitiative.com/advisories/ZDI-21-463/
http://www.openwall.com/lists/oss-security/2021/04/13/1
https://bugzilla.redhat.com/show_bug.cgi?id=1944167
https://gitlab.freedesktop.org/xorg/xserver/-/commit/7aaf54a1884f71dc363f0b884e57bcb67407a6cd
https://lists.debian.org/debian-lts-announce/2021/04/msg00013.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDF7TAJE7NPZPNVOXSD5HBIFLNPUOD2V/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6S5OPXUDYBSRSVWVLFLJ6AFERG4HNY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N63KL3T22HNFT4FJ7VMVF6U5Q4RFJIQF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEXPCLMVU25AUZTUXC4MYBGPKOAIM5TW/
https://lists.x.org/archives/xorg-announce/2021-April/003080.html
https://lists.x.org/archives/xorg-announce/2021-April/003080.html
https://seclists.org/oss-sec/2021/q2/20
https://security.gentoo.org/glsa/202104-02
https://www.debian.org/security/2021/dsa-4893
https://www.tenable.com/plugins/nessus/148701
https://www.zerodayinitiative.com/advisories/ZDI-21-463/