[Bug 1714506] Update Released

[Łukasz Zemczak]

The verification of the Stable Release Update for gnutls28 has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1714506

Title:
  libgnutls30 OCSP verification bug

Status in gnutls28 package in Ubuntu:
  Fix Released
Status in gnutls28 source package in Zesty:
  Fix Released

Bug description:
  [Impact]

  Applications using GnuTLS fails to verify OSCP, especially when ECDSA
  is involved, which becomes increasingly more popular.

  [Test Case]
  Run "gnutls-cli -p 443 tvemsnbc-vh.akamaihd.net" - it should succeed (hang once connected, basically), but fails the handshake with certificate validation.

  [Regression Potential]
  Only OCSP code is affected by the fixes, so something could possibly break there.

  [Other Info]
  This was fixed in Debian stretch in 3.5.8-5+deb9u3:

  https://anonscm.debian.org/cgit/pkg-
  gnutls/gnutls.git/commit/?h=gnutls28_09_stretch&id=aebb4e1b78758d6395e17a3137f2c67a2fb7a334

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