[Bug 1310781] Re: bad bignum encoding for curve25519-sha256 at libssh.org

[Omega Weapon]

Sorry for the delay - I have enabled proposed and can confirm forced
curve25519-sha256 at libssh.org works now :)

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https://bugs.launchpad.net/bugs/1310781

Title:
  bad bignum encoding for curve25519-sha256 at libssh.org

Status in “openssh” package in Ubuntu:
  Fix Released
Status in “openssh” source package in Trusty:
  Fix Committed

Bug description:
  [Impact] Occasional key exchange failure with ED25519.
  [Test Case] I don't have a clear one, but perhaps attempting lots of connections to a fixed server would do it.
  [Regression Potential] We should test with an unpatched server to make sure that it properly falls back to skipping that key exchange method.

  There's an occasional (one in 512 or so) key exchange failure in the
  curve25519-sha256 key exchange method, which affects OpenSSH 6.5 and
  6.6.  Upstream gives more details here and has recommended that
  distributors apply this patch:

    https://lists.mindrot.org/pipermail/openssh-unix-
  dev/2014-April/032494.html

  We should issue this as an update for trusty.

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