vulnerability

Ubuntu: (Multiple Advisories) (CVE-2025-0239): Firefox vulnerabilities

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Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
Jan 7, 2025
Added
Jan 10, 2025
Modified
Feb 4, 2026

Description

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.

Solutions

ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird

References

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