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[Launchpad Bug Tracker <1425914@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:ubuntu/precise-proposed/openssl

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https://bugs.launchpad.net/bugs/1425914

Title:
  DTLS handshake broken - precise x64

Status in OpenSSL cryptography and SSL/TLS toolkit:
  Fix Released
Status in openssl package in Ubuntu:
  Fix Released
Status in openssl source package in Precise:
  Fix Committed
Status in openssl source package in Trusty:
  Fix Released
Status in openssl source package in Utopic:
  Fix Released
Status in openssl source package in Vivid:
  Fix Released

Bug description:
  Hi,

  there is a problem in DTLS handshake in OpenSSL library in Ubuntu
  12.04 x86_64. The affected library version is  libssl
  1.0.1-4ubuntu5.21.  The problem causes, that it is impossible to
  establish DTLS session with Chrome or Firefox when trying to perform a
  SIP call via WebRTC.

  The problem is fixed in OpenSSL upstream by commit https://github.com/openssl/openssl/commit/a20152bdaf7a99b006ff5a0eef081502e0e11553
  committed April 4th 2012.

  32bit version of Ubuntu 12.04 is not affected by this issue, because
  it doesn't support HMAC ciphers, which cause the problem.

  I've checked other distributions (Centos6, Centos7, Ubuntu 14.04 and
  especially Debian 7 - which should be close to Ubuntu 12.04) and all
  has this patch applied and thus WebRTC calls work.

  Please merge this upstream fix to Ubuntu 12.04 x86_64 libssl package.

  Thanks

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