Vulnerability Description
Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don't have a trusted newsreader installed by default, an unscrupulous program that the user downloaded could register itself as a handler. The website that served the application download could then launch that application at will. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 130.0 |
| Mozilla | Firefox Esr | < 115.15 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1908496Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2024-39/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-40/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-41/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00012.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00025.html
FAQ
What is CVE-2024-8383?
CVE-2024-8383 is a vulnerability with a CVSS score of 7.5 (HIGH). Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-rel...
How severe is CVE-2024-8383?
CVE-2024-8383 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-8383?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr.