Type Confusion in WebKitGTK+ and WPE WebKit - CVE-2020-9948

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Main Vulnerability Database Vulnerabilities #VU46801

Type Confusion in WebKitGTK+ and WPE WebKit - CVE-2020-9948

Published: September 18, 2020 / Updated: November 24, 2020


Vulnerability identifier: #VU46801
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-9948
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in WebKit component in Apple Safari. A remote attacker can trick the victim to visit a specially crafted web page, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

WebKitGTK+
WPE WebKit
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
SUSE OpenStack Cloud
HPE Helion Openstack
SUSE OpenStack Cloud Crowbar
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Module for Basesystem
Ubuntu
accountsservice (Red Hat package)
vala (Red Hat package)
gvfs (Red Hat package)
gjs (Red Hat package)
webkit2gtk3 (Red Hat package)
webkit2gtk (Debian package)
webkit2gtk (Alpine package)
glib2 (Red Hat package)
nautilus (Red Hat package)
gnome-online-accounts (Red Hat package)
gnome-control-center (Red Hat package)
gnome-terminal (Red Hat package)
gdm (Red Hat package)
gnome-boxes (Red Hat package)
gnome-software (Red Hat package)
gnome-settings-daemon (Red Hat package)
gnome-shell-extensions (Red Hat package)
gnome-shell (Red Hat package)
mutter (Red Hat package)
chrome-gnome-shell (Red Hat package)
libepubgen (Red Hat package)
gamin (Red Hat package)
libvisual (Red Hat package)
dleyna-server (Red Hat package)
dleyna-core (Red Hat package)
woff2 (Red Hat package)
cairomm (Red Hat package)
gtk-doc (Red Hat package)
soundtouch (Red Hat package)
OpenEXR (Red Hat package)
enchant2 (Red Hat package)
geoclue2 (Red Hat package)
20 (Red Hat package)
atkmm (Red Hat package)
gtkmm24 (Red Hat package)
gtk2 (Red Hat package)
libjavascriptcoregtk-4.0-18 (Ubuntu package)
libwebkit2gtk-4.0-37 (Ubuntu package)
libwebkit2gtk3-lang
webkit2gtk3-debugsource
webkit2gtk-4_0-injected-bundles-debuginfo
webkit2gtk-4_0-injected-bundles
typelib-1_0-WebKit2WebExtension-4_0
typelib-1_0-WebKit2-4_0
typelib-1_0-JavaScriptCore-4_0
libwebkit2gtk-4_0-37-debuginfo
libwebkit2gtk-4_0-37
libjavascriptcoregtk-4_0-18-debuginfo
libjavascriptcoregtk-4_0-18
webkit2gtk3-devel
pangomm (Red Hat package)
webkitgtk4 (Red Hat package)
glibmm24 (Red Hat package)
libsass (Red Hat package)
gtkmm30 (Red Hat package)
geocode-glib (Red Hat package)
gnome-photos (Red Hat package)
libdazzle (Red Hat package)
Cloud Pak for Security (CP4S)
Apple Safari
Web Terminal
OpenShift Virtualization

How to mitigate CVE-2020-9948

Install updates from vendor's website.

WebKitGTK+ - update to 2.30.3
WPE WebKit - update to 2.30.3
accountsservice (Red Hat package) - update to 0.6.55-1.el8
vala (Red Hat package) - update to 0.40.19-2.el8
Cloud Pak for Security (CP4S) - update to 1.8.0.0
gvfs (Red Hat package) - update to 1.36.2-11.el8
gjs (Red Hat package) - update to 1.56.2-5.el8
webkit2gtk3 (Red Hat package) - update to 2.30.4-1.el8
webkit2gtk (Debian package) - update to 2.30.3-1~deb10u1
webkit2gtk (Alpine package) - update to 2.32.0-r0
glib2 (Red Hat package) - update to 2.56.4-9.el8
nautilus (Red Hat package) - update to 3.28.1-15.el8
gnome-online-accounts (Red Hat package) - update to 3.28.2-2.el8
gnome-control-center (Red Hat package) - update to 3.28.2-27.el8
gnome-terminal (Red Hat package) - update to 3.28.3-3.el8
gdm (Red Hat package) - update to 3.28.3-39.el8
gnome-boxes (Red Hat package) - update to 3.36.5-8.el8
gnome-software (Red Hat package) - update to 3.36.1-5.el8
gnome-settings-daemon (Red Hat package) - update to 3.32.0-14.el8
gnome-shell-extensions (Red Hat package) - update to 3.32.1-14.el8
gnome-shell (Red Hat package) - update to 3.32.2-30.el8
mutter (Red Hat package) - update to 3.32.2-57.el8
Apple Safari - update to 14.0
chrome-gnome-shell (Red Hat package) - update to 10.1-7.el8
libepubgen (Red Hat package) - update to 0.1.0-3.el8
gamin (Red Hat package) - update to 0.1.10-32.el8
libvisual (Red Hat package) - update to 0.4.0-25.el8
dleyna-server (Red Hat package) - update to 0.6.0-3.el8
dleyna-core (Red Hat package) - update to 0.6.0-3.el8
woff2 (Red Hat package) - update to 1.0.2-5.el8
Web Terminal - update to 1.3
cairomm (Red Hat package) - update to 1.12.0-8.el8
gtk-doc (Red Hat package) - update to 1.28-3.el8
soundtouch (Red Hat package) - update to 2.0.0-3.el8
OpenEXR (Red Hat package) - update to 2.2.0-12.el8
enchant2 (Red Hat package) - update to 2.2.3-3.el8
geoclue2 (Red Hat package) - update to 2.5.5-2.el8
OpenShift Virtualization - addressed in versions 2.6.6, 4.8.0
20 (Red Hat package) - update to 2.10.0-6.el8
atkmm (Red Hat package) - update to 2.24.2-7.el8
gtkmm24 (Red Hat package) - update to 2.24.5-6.el8
gtk2 (Red Hat package) - update to 2.24.32-5.el8
libjavascriptcoregtk-4.0-18 (Ubuntu package) - addressed in versions 2.30.3-0ubuntu0.18.04.1, 2.30.3-0ubuntu0.20.04.1, 2.30.3-0ubuntu0.20.10.1
libwebkit2gtk-4.0-37 (Ubuntu package) - addressed in versions 2.30.3-0ubuntu0.18.04.1, 2.30.3-0ubuntu0.20.04.1, 2.30.3-0ubuntu0.20.10.1
libwebkit2gtk3-lang - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-debugsource - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk-4_0-injected-bundles - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2-4_0 - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37 - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libjavascriptcoregtk-4_0-18 - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-devel - addressed in versions 2.32.1-2.63.3, 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
pangomm (Red Hat package) - update to 2.40.1-6.el8
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9
glibmm24 (Red Hat package) - update to 2.56.0-2.el8
libsass (Red Hat package) - update to 3.4.5-6.el8
gtkmm30 (Red Hat package) - update to 3.22.2-3.el8
geocode-glib (Red Hat package) - update to 3.26.0-3.el8
gnome-photos (Red Hat package) - update to 3.28.1-4.el8
libdazzle (Red Hat package) - update to 3.28.5-2.el8

External References

Related Security Bulletins