Use-after-free in WPE WebKit and WebKitGTK+ - CVE-2020-13558

Vulnerability identifier: #VU48726

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-2020-13558

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the AudioSourceProviderGStreamer functionality. A remote attacker can trick a victim to visit a specially crafted webpage and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

WPE WebKit
WebKitGTK+
Gentoo Linux
HPE Helion Openstack
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
Ubuntu
Fedora
webkit2gtk (Debian package)
libwebkit2gtk-4.0-37 (Ubuntu package)
libjavascriptcoregtk-4.0-18 (Ubuntu package)
webkit2gtk3
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
webkitgtk4 (Red Hat package)

Install update from vendor's website.

WPE WebKit - update to 2.30.5
WebKitGTK+ - update to 2.30.5
webkit2gtk (Debian package) - update to 2.30.5-1~deb10u1
libwebkit2gtk-4.0-37 (Ubuntu package) - addressed in versions 2.30.5-0ubuntu0.18.04.1, 2.30.5-0ubuntu0.20.04.1, 2.30.5-0ubuntu0.20.10.1
libjavascriptcoregtk-4.0-18 (Ubuntu package) - addressed in versions 2.30.5-0ubuntu0.18.04.1, 2.30.5-0ubuntu0.20.04.1, 2.30.5-0ubuntu0.20.10.1
webkit2gtk3 - addressed in versions 2.30.5-1.fc32, 2.30.5-1.fc33
libjavascriptcoregtk-4_0-18 - update to 2.32.1-2.63.3
webkit2gtk3-devel - update to 2.32.1-2.63.3
libwebkit2gtk3-lang - update to 2.32.1-2.63.3
webkit2gtk3-debugsource - update to 2.32.1-2.63.3
webkit2gtk-4_0-injected-bundles-debuginfo - update to 2.32.1-2.63.3
webkit2gtk-4_0-injected-bundles - update to 2.32.1-2.63.3
typelib-1_0-WebKit2WebExtension-4_0 - update to 2.32.1-2.63.3
typelib-1_0-WebKit2-4_0 - update to 2.32.1-2.63.3
typelib-1_0-JavaScriptCore-4_0 - update to 2.32.1-2.63.3
libwebkit2gtk-4_0-37-debuginfo - update to 2.32.1-2.63.3
libwebkit2gtk-4_0-37 - update to 2.32.1-2.63.3
libjavascriptcoregtk-4_0-18-debuginfo - update to 2.32.1-2.63.3
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1172
• https://webkitgtk.org/security/WSA-2021-0001.html

• Remote code execution in Webkit WebKitGTK
• Debian update for webkit2gtk
• Gentoo update for WebkitGTK+
• SUSE update for webkit2gtk3
• Ubuntu update for webkit2gtk
• Fedora 32 update for webkit2gtk3
• Fedora 33 update for webkit2gtk3
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for webkitgtk4