Multiple vulnerabilities in WebKitGTK+ and WPE WebKit

Published: 2023-09-11 | Updated: 2023-09-13

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-32370 CVE-2023-28198
CWE-ID	CWE-254 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	WebKitGTK+ Server applications / Frameworks for developing and running applications WPE WebKit Server applications / Frameworks for developing and running applications
Vendor

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated: 13.09.2023

Vulnerability #VU78988 (CVE-2023-28198) was moved here from bulletin SB2023080713.

1) Security features bypass

EUVDB-ID: #VU80630

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-32370

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in WebKit, as Content Security Policy may fail to block domains with wildcards. A remote attacker can bypass implemented CSP restrictions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: before 2.40.1

WPE WebKit: before 2.40.1

External links

http://support.apple.com/en-us/HT213670
http://webkitgtk.org/security/WSA-2023-0008.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?

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

2) Use-after-free

EUVDB-ID: #VU78988

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28198

CWE-ID: CWE-416 - Use After Free