CVE-2020-14363

An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
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: 35%
Affected Products (NVD)
VendorProductVersion
x.orglibx11
𝑥
< 1.6.12
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libx11
bookworm
2:1.8.4-2+deb12u2
fixed
bookworm (security)
2:1.8.4-2+deb12u2
fixed
bullseye
2:1.7.2-1+deb11u2
fixed
bullseye (security)
2:1.7.2-1+deb11u2
fixed
sid
2:1.8.10-1
fixed
trixie
2:1.8.7-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libx11
bionic
Fixed 2:1.6.4-3ubuntu0.3
released
focal
Fixed 2:1.6.9-2ubuntu1.1
released
trusty
Fixed 2:1.6.2-1ubuntu2.1+esm1
released
xenial
Fixed 2:1.6.3-1ubuntu2.2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libX11-6
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 12 SP2
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP3
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP4
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP5
1.6.2-12.15.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 12 SP2
1.6.2-12.15.1
fixed
suse enterprise server 12 SP3
1.6.2-12.15.1
fixed
suse enterprise server 12 SP4
1.6.2-12.15.1
fixed
suse enterprise server 12 SP5
1.6.2-12.15.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
libX11-6-32bit
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 12 SP2
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP3
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP4
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP5
1.6.2-12.15.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 12 SP2
1.6.2-12.15.1
fixed
suse enterprise server 12 SP3
1.6.2-12.15.1
fixed
suse enterprise server 12 SP4
1.6.2-12.15.1
fixed
suse enterprise server 12 SP5
1.6.2-12.15.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
libX11-data
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 12 SP2
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP3
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP4
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP5
1.6.2-12.15.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 12 SP2
1.6.2-12.15.1
fixed
suse enterprise server 12 SP3
1.6.2-12.15.1
fixed
suse enterprise server 12 SP4
1.6.2-12.15.1
fixed
suse enterprise server 12 SP5
1.6.2-12.15.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
libX11-devel
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
libX11-xcb1
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 12 SP2
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP3
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP4
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP5
1.6.2-12.15.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 12 SP2
1.6.2-12.15.1
fixed
suse enterprise server 12 SP3
1.6.2-12.15.1
fixed
suse enterprise server 12 SP4
1.6.2-12.15.1
fixed
suse enterprise server 12 SP5
1.6.2-12.15.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
libX11-xcb1-32bit
suse enterprise desktop 15 SP1
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP2
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP3
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP4
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP5
1.6.5-3.12.1
fixed
suse enterprise desktop 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise desktop 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise sap 12 SP2
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP3
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP4
1.6.2-12.15.1
fixed
suse enterprise sap 12 SP5
1.6.2-12.15.1
fixed
suse enterprise sap 15 SP1
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP2
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP3
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP4
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP5
1.6.5-3.12.1
fixed
suse enterprise sap 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise sap 15 SP7
1.8.10-150700.2.1
fixed
suse enterprise server 12 SP2
1.6.2-12.15.1
fixed
suse enterprise server 12 SP3
1.6.2-12.15.1
fixed
suse enterprise server 12 SP4
1.6.2-12.15.1
fixed
suse enterprise server 12 SP5
1.6.2-12.15.1
fixed
suse enterprise server 15
1.6.5-3.12.1
fixed
suse enterprise server 15 SP1
1.6.5-3.12.1
fixed
suse enterprise server 15 SP2
1.6.5-3.12.1
fixed
suse enterprise server 15 SP3
1.6.5-3.12.1
fixed
suse enterprise server 15 SP4
1.6.5-3.12.1
fixed
suse enterprise server 15 SP5
1.6.5-3.12.1
fixed
suse enterprise server 15 SP6
1.8.7-150600.1.2
fixed
suse enterprise server 15 SP7
1.8.10-150700.2.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
egl-wayland
RHEL 8
0:1.1.5-3.el8
fixed
libX11
RHEL 6
0:1.6.4-4.el6_10
fixed
RHEL 7
0:1.6.7-3.el7_9
fixed
RHEL 8
0:1.6.8-4.el8
fixed
libX11-common
RHEL 6
0:1.6.4-4.el6_10
fixed
RHEL 7
0:1.6.7-3.el7_9
fixed
RHEL 8
0:1.6.8-4.el8
fixed
libX11-devel
RHEL 6
0:1.6.4-4.el6_10
fixed
RHEL 7
0:1.6.7-3.el7_9
fixed
RHEL 8
0:1.6.8-4.el8
fixed
libX11-xcb
RHEL 8
0:1.6.8-4.el8
fixed
libdrm
RHEL 8
0:2.4.103-1.el8
fixed
libdrm-devel
RHEL 8
0:2.4.103-1.el8
fixed
libglvnd
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-core-devel
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-devel
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-egl
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-gles
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-glx
RHEL 8
1:1.3.2-1.el8
fixed
libglvnd-opengl
RHEL 8
1:1.3.2-1.el8
fixed
libinput
RHEL 8
0:1.16.3-1.el8
fixed
libinput-devel
RHEL 8
0:1.16.3-1.el8
fixed
libinput-utils
RHEL 8
0:1.16.3-1.el8
fixed
libwacom
RHEL 8
0:1.6-2.el8
fixed
libwacom-data
RHEL 8
0:1.6-2.el8
fixed
libwacom-devel
RHEL 8
0:1.6-2.el8
fixed
mesa-dri-drivers
RHEL 8
0:20.3.3-2.el8
fixed
mesa-filesystem
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libEGL
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libEGL-devel
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libGL
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libGL-devel
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libOSMesa
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libOSMesa-devel
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libgbm
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libgbm-devel
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libglapi
RHEL 8
0:20.3.3-2.el8
fixed
mesa-libxatracker
RHEL 8
0:20.3.3-2.el8
fixed
mesa-vdpau-drivers
RHEL 8
0:20.3.3-2.el8
fixed
mesa-vulkan-devel
RHEL 8
0:20.3.3-2.el8
fixed
mesa-vulkan-drivers
RHEL 8
0:20.3.3-2.el8
fixed
xorg-x11-drivers
RHEL 8
0:7.7-30.el8
fixed
xorg-x11-server-Xdmx
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-Xephyr
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-Xnest
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-Xorg
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-Xvfb
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-Xwayland
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-common
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-devel
RHEL 8
0:1.20.10-1.el8
fixed
xorg-x11-server-source
RHEL 8
0:1.20.10-1.el8
fixed
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363
https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt
https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
https://lists.x.org/archives/xorg-announce/2020-August/003056.html
https://usn.ubuntu.com/4487-2/
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363
https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt
https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
https://lists.x.org/archives/xorg-announce/2020-August/003056.html
https://usn.ubuntu.com/4487-2/