Multiple vulnerabilities in WebKitGTK+ and WPE WebKit

Published: 2023-10-25 | Updated: 2023-11-16

Risk	High
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2023-41976 CVE-2023-40447
CWE-ID	CWE-416 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	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.

Update 16.11.2023

Vulnerabilities #VU82397 (CVE-2023-41983) and #VU82396 (CVE-2023-42852) moved to bulletin SB2023111605.

1) Use-after-free

EUVDB-ID: #VU82395

Risk: High

CVSSv4.0: 6.1 [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:U/U:Amber]

CVE-ID: CVE-2023-41976

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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 open a specially crafted website, trigger a use-after-free error and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WebKitGTK+: All versions

WPE WebKit: All versions

CPE2.3

External links

https://support.apple.com/en-us/HT213986

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?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU82394