Published: 11/06/2018 Updated: 03/10/2019

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 5.3 | Impact Score: 1.4 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

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.

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mozilla firefox

USN-3391-1 introduced a regression in Firefox ...

This update provides compatible packages for Firefox 55 ...

Firefox could be made to crash or run programs as your login if it opened a malicious website ...

Mozilla Foundation Security Advisory 2017-18 Security vulnerabilities fixed in Firefox 55 Announced August 8, 2017 Impact critical Products Firefox Fixed in Firefox 55 ...

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 ...

A security issue has been found in Firefox < 550 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 ...

NVD-CWE-noinfo https://www.mozilla.org/security/advisories/mfsa2017-18/https://bugzilla.mozilla.org/show_bug.cgi?id=1074642 http://www.securitytracker.com/id/1039124 http://www.securityfocus.com/bid/100374 https://nvd.nist.gov https://usn.ubuntu.com/3391-3/

CVE-2017-7789

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