Remote code execution in WebKitGTK and WPE WebKit



Published: 2021-09-20 | Updated: 2021-11-01
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30858
CWE-ID CWE-416
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Subscribe 		WPE WebKit
Server applications / Frameworks for developing and running applications

WebKitGTK+
Server applications / Frameworks for developing and running applications

Vendor WebKitGTK

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU56475

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2021-30858

CWE-ID:

Exploit availability:

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

WPE WebKit: 2.32.0 - 2.33.90

WebKitGTK+: 2.32.0 - 2.33.90

Fixed software versions

CPE2.3 External links

http://webkitgtk.org/security/WSA-2021-0005.html
http://webkitgtk.org/security/WSA-2021-0006.html


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



###SIDEBAR###