Multiple vulnerabilities in WebKitGTK and WPE WebKit

Published: 2023-05-30

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-28204 CVE-2023-32373
CWE-ID	CWE-125 CWE-416
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild.
Vulnerable software Subscribe	WebKitGTK+ Server applications / Frameworks for developing and running applications WPE WebKit Server applications / Frameworks for developing and running applications
Vendor	WebKitGTK

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU76310

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:L/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-28204

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in WebKit. A remote attacker can trick the victim to visit a specially crafted webpage, trigger an out-of-bounds read error and read contents of memory on the system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.40.0 - 2.40.1

WPE WebKit: 2.40.0 - 2.40.1

External links

http://support.apple.com/en-us/HT213757
http://webkitgtk.org/security/WSA-2023-0004.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.

2) Use-after-free

EUVDB-ID: #VU76312

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-32373

CWE-ID: CWE-416 - Use After Free