[Bug 1714506] Re: libgnutls30 OCSP verification bug

[Launchpad Bug Tracker]

This bug was fixed in the package gnutls28 - 3.5.8-6ubuntu3

---------------
gnutls28 (3.5.8-6ubuntu3) artful; urgency=medium

  * Cherry pick several fixes from Debian 3.5.8-5+deb9u3:
    - 38_01-OCSP-check-the-subject-public-key-identifier-field-t.patch
      38_02-OCSP-find_signercert-improved-DER-length-calculation.patch from
      gnutls 3.5.14: Fix OCSP verification errors, especially with ecdsa
      signatures. LP: #1714506
    - 37_aarch64-fix-AES-GCM-in-place-encryption-and-decrypti.patch from
      upstream 3.5.x branch: Fix breakage if AES-GCM in-place encryption and
      decryption on aarch64. LP: #1707172

 -- Julian Andres Klode <juliank at ubuntu.com>  Sat, 02 Sep 2017 16:12:49
+0200

** Changed in: gnutls28 (Ubuntu)
       Status: Fix Committed => Fix Released

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Title:
  libgnutls30 OCSP verification bug

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

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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