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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have TLS connection issues when the server (openjdk version "1.8.0_222") runs in FIPS 140.2 mode. The error thrown on the server is:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“javax.net.ssl.SSLException: Unsupported record version SSLv3” (which originates from: sun.security.ssl.InputRecord.checkRecordVersion(…))<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This error only happens when the server JRE runs in FIPS 140.2 mode. This is because of the following code in class sun.security.ssl.ProtocolVersion:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal"> // minimum version we implement (SSL 3.0)<o:p></o:p></p>
<p class="MsoNormal"> final static ProtocolVersion MIN = FIPS ? TLS10 : SSL30;<o:p></o:p></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Our server *<b>only</b>* allows TLS 1.2 as TLS protocol version, however, If I have the correct understanding of the TLS 1.2 specification enforcing a record version of (at least ) TLS10 seems to violate the specification (<a href="https://tools.ietf.org/html/rfc5246#appendix-E.1">https://tools.ietf.org/html/rfc5246#appendix-E.1</a>):<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal"> […] Thus, TLS servers compliant with this specification MUST accept any value {03,XX} as<o:p></o:p></p>
<p class="MsoNormal"> the record layer version number for ClientHello. […]<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">(Appendix E. Backward Compatibility - E.1. Compatibility with TLS 1.0/1.1 and SSL 3.0)<o:p></o:p></p>
<p class="MsoNormal">“<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is this something which should be fixed in the JRE? Or is the behavior of the client wrong?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Christian.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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