Public bug reported:

[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

** Affects: gnutls28 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: gnutls libgnutls30 ocsp tls

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

Title:
  libgnutls30 OCSP verification bug

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