CVE-2017-7789

CVE-2017-7789

EPSS 1.8%

If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection. This vulnerability affects Firefox < 55.

Affected products

Mozilla · Firefox

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1074642 https://www.mozilla.org/security/advisories/mfsa2017-18/http://www.securityfocus.com/bid/100374 http://www.securitytracker.com/id/1039124