Vulnerability identifier: #VU89537
Vulnerability risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-843
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Mozilla Firefox
Client/Desktop applications /
Web browsers
Firefox ESR
Client/Desktop applications /
Web browsers
Firefox for Android
Mobile applications /
Apps for mobile phones
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error when handling fonts in PDF.js. A remote attacker can trick the victim to visit a specially crafted website, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 100.0 - 125.0.3
Firefox ESR: 115.0 - 115.10.0, 102.0 - 102.15.1
Firefox for Android: 100.1.0 - 124.2.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2024-21/
http://www.mozilla.org/en-US/security/advisories/mfsa2024-22/
http://codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js/
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. However, proof of concept for this vulnerability is available.