A security issue has been found in Firefox before version 88 and Thunderbird before version 78.10. Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header.
A security issue has been found in Firefox before version 88 and Thunderbird before version 78.10. Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header.
https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-29946 https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/#CVE-2021-29946 https://bugzilla.mozilla.org/show_bug.cgi?id=1698503
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