VulnerabilityModified
CVE-2024-4367
A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution in the PDF.js context.
HIGH 8.8EPSS 70.7%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 70.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 70.66% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- mozilla/firefox · mozilla/thunderbird · debian/debian linux · open-xchange/open-xchange appsuite frontend
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1893645Issue Tracking
- https://lists.debian.org/debian-lts-announce/2024/05/msg00010.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/05/msg00012.htmlMailing List
- https://www.mozilla.org/security/advisories/mfsa2024-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-23/Vendor Advisory
- http://seclists.org/fulldisclosure/2024/Aug/30Mailing List
- https://bugzilla.mozilla.org/show_bug.cgi?id=1893645Issue Tracking
- 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://lists.debian.org/debian-lts-announce/2024/05/msg00010.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/05/msg00012.htmlMailing List
- https://www.exploit-db.com/exploits/52273
- https://www.mozilla.org/security/advisories/mfsa2024-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-23/Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-827383.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.