high7.5
CVE-2024-8383
Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 130.0 |
| Mozilla | Firefox Esr | before 115.15 from 128.0 before 128.2 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1908496
- https://www.mozilla.org/security/advisories/mfsa2024-39/
- https://www.mozilla.org/security/advisories/mfsa2024-40/
- https://www.mozilla.org/security/advisories/mfsa2024-41/
- https://lists.debian.org/debian-lts-announce/2024/09/msg00012.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00025.html