| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | = 30.0= 31.0= 31.1.0≤ 32.0 |
The Public Key Pinning (PKP) implementation in Mozilla Firefox before 33.0 does not properly consider the connection-coalescing behavior of SPDY and HTTP/2 in the case of a shared IP address, which allows man-in-the-middle attackers to bypass an intended pinning configuration and spoof a web site by providing a valid certificate from an arbitrary recognized Certification Authority.
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