Remote code execution in WebKitGTK and WPE WebKit

1) Use-after-free

EUVDB-ID: #VU60520

Risk: Critical

CVSSv4.0: 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/E:A/U:Red]

CVE-ID: CVE-2022-22620

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

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 in WebKit. A remote attacker can trick the victim to visit a specially crafted web page, 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.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.34.0 - 2.34.5

WPE WebKit: 2.34.0 - 2.34.5

CPE2.3

• cpe:2.3:a:webkitgtk:webkitgtk_plus:2.34.0:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:webkitgtk_plus:2.34.1:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:webkitgtk_plus:2.34.2:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:wpe_webkit:2.34.0:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:wpe_webkit:2.34.1:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:wpe_webkit:2.34.2:*:*:*:*:*:*:*

External links

https://webkitgtk.org/security/WSA-2022-0003.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.