First published: Tue Sep 03 2024(Updated: )
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.
Credit: security@mozilla.org security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
debian/firefox | 131.0.2-2 | |
debian/firefox-esr | <=115.14.0esr-1~deb11u1<=115.14.0esr-1~deb12u1 | 128.3.1esr-1~deb11u1 128.3.1esr-1~deb12u1 128.3.0esr-2 128.3.1esr-2 |
debian/thunderbird | <=1:115.12.0-1~deb11u1<=1:115.12.0-1~deb12u1 | 1:115.15.0-1~deb11u1 1:115.15.0-1~deb12u1 |
Thunderbird | <128.2 | 128.2 |
Thunderbird | <115.15 | 115.15 |
Firefox | <130 | 130 |
Firefox | <130.0 | |
Firefox ESR | <115.15 | |
Firefox ESR | >=128.0<128.2 | |
Firefox ESR | <115.15 | 115.15 |
Firefox ESR | <128.2 | 128.2 |
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(Appears in the following advisories)
(Found alongside the following vulnerabilities)
CVE-2024-8383 has a moderate severity rating due to potential exposure to untrusted applications handling Usenet-related schemes.
To fix CVE-2024-8383, update Firefox or Thunderbird to the latest recommended versions: for Firefox to 130.0 or higher and for Thunderbird to 128.2 or higher.
Versions of Firefox earlier than 130.0 and versions of Firefox ESR earlier than 115.15 are affected by CVE-2024-8383.
Thunderbird versions prior to 128.2 are impacted by CVE-2024-8383.
Users should immediately update their affected versions of Firefox or Thunderbird to mitigate CVE-2024-8383.