CVE-2024-4367 Information

Description

A type check was missing when handling fonts in PDF.js which would allow arbitrary JavaScript execution in the PDF.js context. This vulnerability affects Firefox < 126 Firefox ESR < 115.11 and Thunderbird < 115.11.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1893645 https://www.mozilla.org/security/advisories/mfsa2024-21/ https://www.mozilla.org/security/advisories/mfsa2024-22/ https://www.mozilla.org/security/advisories/mfsa2024-23/