openjdk team mailing list archive

[Jeffrey Walton <noloader@xxxxxxxxx>]

Public bug reported:

OpenJDK-7 disables TLS 1.1 and 1.2 by default. It might be a good idea
to enable them. The past interop issues are rarely encountered in 2014.

The program below only prints "TLSv1" even though I expected to see
"TLSv1", "TLSv1.1" and "TLSv1.2". In fact, the protocols are available -
they are just not enabled by default.

And "no comment" on why I'm getting "SSLv3" when I asked for "TLS". That
will get its own bug report.

$ javac ProtocolTest.java && java ProtocolTest
Supported Protocols: 5
  SSLv2Hello
  SSLv3
  TLSv1
  TLSv1.1
  TLSv1.2
Enabled Protocols: 2
  SSLv3
  TLSv1

**********

Ubuntu 14.04 (x64), fully patched:

$ uname -a
Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

**********

$ java -version
java version "1.7.0_51"
OpenJDK Runtime Environment (IcedTea 2.4.6) (7u51-2.4.6-1ubuntu4)
OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)

**********

SSLContext context = SSLContext.getInstance("TLS");
context.init(null,null,null);

SSLSocketFactory factory = (SSLSocketFactory)context.getSocketFactory();
SSLSocket socket = (SSLSocket)factory.createSocket();

String[] protocols = socket.getSupportedProtocols();

System.out.println("Supported Protocols: " + protocols.length);
for(int i = 0; i < protocols.length; i++)
{
     System.out.println("  " + protocols[i]);
}

protocols = socket.getEnabledProtocols();

System.out.println("Enabled Protocols: " + protocols.length);
for(int i = 0; i < protocols.length; i++)
{
     System.out.println("  " + protocols[i]);
}

** Affects: openjdk-7 (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Program to test supported and enabled protocols."
   https://bugs.launchpad.net/bugs/1314113/+attachment/4100235/+files/ProtocolTest.java

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https://bugs.launchpad.net/bugs/1314113

Title:
  TLS 1.1 and 1.2 are disabled by default

Status in “openjdk-7” package in Ubuntu:
  New

Bug description:
  OpenJDK-7 disables TLS 1.1 and 1.2 by default. It might be a good idea
  to enable them. The past interop issues are rarely encountered in
  2014.

  The program below only prints "TLSv1" even though I expected to see
  "TLSv1", "TLSv1.1" and "TLSv1.2". In fact, the protocols are available
  - they are just not enabled by default.

  And "no comment" on why I'm getting "SSLv3" when I asked for "TLS".
  That will get its own bug report.

  $ javac ProtocolTest.java && java ProtocolTest
  Supported Protocols: 5
    SSLv2Hello
    SSLv3
    TLSv1
    TLSv1.1
    TLSv1.2
  Enabled Protocols: 2
    SSLv3
    TLSv1

  **********

  Ubuntu 14.04 (x64), fully patched:

  $ uname -a
  Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  **********

  $ java -version
  java version "1.7.0_51"
  OpenJDK Runtime Environment (IcedTea 2.4.6) (7u51-2.4.6-1ubuntu4)
  OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)

  **********

  SSLContext context = SSLContext.getInstance("TLS");
  context.init(null,null,null);

  SSLSocketFactory factory = (SSLSocketFactory)context.getSocketFactory();
  SSLSocket socket = (SSLSocket)factory.createSocket();

  String[] protocols = socket.getSupportedProtocols();

  System.out.println("Supported Protocols: " + protocols.length);
  for(int i = 0; i < protocols.length; i++)
  {
       System.out.println("  " + protocols[i]);
  }

  protocols = socket.getEnabledProtocols();

  System.out.println("Enabled Protocols: " + protocols.length);
  for(int i = 0; i < protocols.length; i++)
  {
       System.out.println("  " + protocols[i]);
  }

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