Buffer overflow in WebKitGTK+ and WPE WebKit - CVE-2021-45481

Vulnerability identifier: #VU59918

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-45481

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebCore::ImageBufferCairoImageSurfaceBackend::create. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and perform a denial of service (DoS) attack.

WebKitGTK+
WPE WebKit
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
HPE Helion Openstack
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Module for Basesystem
libjavascriptcoregtk-4_0-18
webkit2gtk3-devel
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
webkit2gtk3-jsc-devel
webkit2gtk3-jsc
webkit2gtk3
webkit2gtk3 (Red Hat package)
webkitgtk4 (Red Hat package)

Install updates from vendor's website.

WebKitGTK+ - addressed in versions 2.32.4, 2.34.0
WPE WebKit - addressed in versions 2.32.4, 2.34.0
libjavascriptcoregtk-4_0-18 - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
webkit2gtk3-devel - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
libwebkit2gtk3-lang - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
webkit2gtk3-debugsource - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
webkit2gtk-4_0-injected-bundles - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
typelib-1_0-WebKit2-4_0 - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
libwebkit2gtk-4_0-37 - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.34.5-2.85.3, 2.34.6-3.97.1, 2.34.6-29.1
webkit2gtk3-jsc-devel - update to 2.34.6-1
webkit2gtk3-jsc - update to 2.34.6-1
webkit2gtk3-devel - update to 2.34.6-1
webkit2gtk3 - update to 2.34.6-1
webkit2gtk3 (Red Hat package) - update to 2.34.6-1.el8
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9

• https://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.32.3
• http://www.openwall.com/lists/oss-security/2022/01/21/2
• https://webkitgtk.org/security/WSA-2022-0001.html

• Multiple vulnerabilities in WebKitGTK and WPE WebKit
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3
• SUSE update for webkit2gtk3
• Anolis OS update for webkit2gtk3
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for webkitgtk4