Security restrictions bypass in WebKitGTK+ and WPE WebKit - CVE-2021-1801

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Main Vulnerability Database Vulnerabilities #VU50233

Security restrictions bypass in WebKitGTK+ and WPE WebKit - CVE-2021-1801

Published: February 2, 2021 / Updated: March 23, 2021


Vulnerability identifier: #VU50233
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1801
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose sanboxing policy in WebKit. A remote attacker can create a specially crafted web page, trick the victim into visiting it and bypass implemented security restrictions.


Affected software

WebKitGTK+
WPE WebKit
Gentoo Linux
Arch Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE CaaS Platform
SUSE Enterprise Storage
SUSE OpenStack Cloud Crowbar
HPE Helion Openstack
SUSE OpenStack Cloud
macOS
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
iPadOS
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Module for Basesystem
Ubuntu
Fedora
Apple iOS
webkit2gtk (Debian package)
libwebkit2gtk-4.0-37 (Ubuntu package)
libjavascriptcoregtk-4.0-18 (Ubuntu package)
webkit2gtk3
typelib-1_0-JavaScriptCore-4_0
typelib-1_0-WebKit2-4_0
webkit2gtk3-debugsource
webkit2gtk3-devel
libjavascriptcoregtk-4_0-18
libjavascriptcoregtk-4_0-18-debuginfo
typelib-1_0-WebKit2WebExtension-4_0
libwebkit2gtk-4_0-37
libwebkit2gtk-4_0-37-debuginfo
webkit2gtk-4_0-injected-bundles
webkit2gtk-4_0-injected-bundles-debuginfo
libwebkit2gtk3-lang
webkitgtk4 (Red Hat package)

How to mitigate CVE-2021-1801

Install updates from vendor's website.

WebKitGTK+ - update to 2.30.6
WPE WebKit - update to 2.30.6
webkit2gtk (Debian package) - update to 2.30.6-1~deb10u1
macOS - update to 11.2 20D64
iPadOS - update to 14.4 18D52
libwebkit2gtk-4.0-37 (Ubuntu package) - addressed in versions 2.30.6-0ubuntu0.18.04.1, 2.30.6-0ubuntu0.20.04.1, 2.30.6-0ubuntu0.20.10.1
libjavascriptcoregtk-4.0-18 (Ubuntu package) - addressed in versions 2.30.6-0ubuntu0.18.04.1, 2.30.6-0ubuntu0.20.04.1, 2.30.6-0ubuntu0.20.10.1
webkit2gtk3 - addressed in versions 2.30.6-1.fc32, 2.32.0-1.fc33, 2.32.0-1.fc34
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
typelib-1_0-WebKit2-4_0 - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
webkit2gtk3-debugsource - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
webkit2gtk3-devel - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
libjavascriptcoregtk-4_0-18 - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
libwebkit2gtk-4_0-37 - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
webkit2gtk-4_0-injected-bundles - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
libwebkit2gtk3-lang - addressed in versions 2.32.0-3.15.1, 2.32.0-3.74.1, 2.32.1-2.63.3
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9
Apple iOS - update to 14.4 18D52

External References

Related Security Bulletins