CVE-2025-0239
When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 134.0 |
| mozilla / firefox | - | 128.6.0 |
| mozilla / thunderbird | - | 128.6.0 |
| mozilla / thunderbird | 129.0 | 134.0 |
- https://bugzilla.mozilla.org/show_bug.cgi?id=1929156
- https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html
- https://www.mozilla.org/security/advisories/mfsa2025-01/
- https://www.mozilla.org/security/advisories/mfsa2025-02/
- https://www.mozilla.org/security/advisories/mfsa2025-04/
- https://www.mozilla.org/security/advisories/mfsa2025-05/
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