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.
Remediation
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1893645
https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html
https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html
https://www.mozilla.org/security/advisories/mfsa2024-21/
https://www.mozilla.org/security/advisories/mfsa2024-22/
https://www.mozilla.org/security/advisories/mfsa2024-23/
http://seclists.org/fulldisclosure/2024/Aug/30
https://codeanlabs.com/blog/research/cve-2024-4367-arbitrary-js-execution-in-pdf-js/
https://github.com/gogs/gogs/issues/7928
https://github.com/mozilla/pdf.js/releases/tag/v4.2.67
https://www.exploit-db.com/exploits/52273
https://cert-portal.siemens.com/productcert/html/ssa-827383.html
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