#VU63823 Use-after-free


Published: 2022-05-30

Vulnerability identifier: #VU63823

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2022-30294

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebKitGTK+
Server applications / Frameworks for developing and running applications
WPE WebKit
Server applications / Frameworks for developing and running applications

Vendor: WebKitGTK
WPE WebKit

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing HTML content within the WebCore::TextureMapperLayer::setContentsLayer() function in WebCore/platform/graphics/texmap/TextureMapperLayer.cpp. A remote attacker can trick the victim to visit a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.36.0

WPE WebKit: 2.36.0


CPE

External links
http://bugs.webkit.org/show_bug.cgi?id=237188
http://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.36.0
http://webkitgtk.org/security/WSA-2022-0005.html


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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