#VU94882 Out-of-bounds read in WebKitGTK+ and WPE WebKit - CVE-2024-40789

Vulnerability identifier: #VU94882

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-40789

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebKitGTK+
Server applications / Frameworks for developing and running applications
WPE WebKit
Server applications / Frameworks for developing and running applications

Vendor: WebKitGTK

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger an out-of-bounds read error and crash the browser.

Mitigation
Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.44.0 - 2.44.2

WPE WebKit: 2.44.0 - 2.44.2

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External links
https://support.apple.com/en-us/HT214121
https://webkitgtk.org/security/WSA-2024-0004.html
https://www.zerodayinitiative.com/advisories/ZDI-24-1160/

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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.