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Mozilla Firefox Security Advisory (MFSA2015-44) - Linux
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
This host is missing a security update for Mozilla Firefox.
Insight
Insight
Certificate verification bypass through the HTTP/2 Alt-Svc header Security researcher Muneaki Nishimura discovered a flaw in the Mozilla's HTTP Alternative Services implementation. If an Alt-Svc header is specified in the HTTP/2 response, SSL certificate verification can be bypassed for the specified alternate server. As a result of this, warnings of invalid SSL certificates will not be displayed and an attacker could potentially impersonate another site through a man-in-the-middle (MTIM), replacing the original certificate with their own.
Affected Software
Affected Software
Firefox version(s) below 37.0.1.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
The vendor has released an update. Please see the reference(s) for more information.