Products

Firefox

• < 130

• ESR < 128.2

• ESR < 115.15

Source

security@mozilla.org

Published : Sept. 3, 2024, 1:15 p.m.
Last Modified : Sept. 3, 2024, 10:15 p.m.

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.

References

URL	Source
https://bugzilla.mozilla.org/show_bug.cgi?id=1908496	security@mozilla.org
https://www.mozilla.org/security/advisories/mfsa2024-39/	security@mozilla.org
https://www.mozilla.org/security/advisories/mfsa2024-40/	security@mozilla.org
https://www.mozilla.org/security/advisories/mfsa2024-41/	security@mozilla.org