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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

** Changed in: firefox (Ubuntu)
   Importance: Undecided => Critical

** Changed in: nss (Ubuntu)
   Importance: Undecided => Critical

** Information type changed from Public to Public Security

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https://bugs.launchpad.net/bugs/1465014

Title:
  after update still vulnerable against LOGJAM

Status in firefox package in Ubuntu:
  Confirmed
Status in nss package in Ubuntu:
  Confirmed

Bug description:
  Hint: http://www.ubuntu.com/usn/usn-2639-1/

  " As a security improvement, this update also modifies OpenSSL
  behaviour to reject DH key sizes below 768 bits, preventing a possible
  downgrade attack. "

  I installed the update but the test site says, i'm still vulnerable (see attachted screen shot).
  Site: https://weakdh.org/

  - Xubuntu 15.04  --  up-to-date

  - openSSL 1.0.1f-1ubuntu11.4  --  up-to-date

  - Firefox 38.0+build3-0ubuntu0.15.04.1  --   up-to-date (even there are the versions 38.0.5 and 38.0.6 on the mozilla server available)
  - Chromium 43.0.2357.81-0ubuntu0.15.04.1.1170  --  up-to-date

  --------------------------------------------------------------------------------

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: openssl 1.0.1f-1ubuntu11.4
  ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
  Uname: Linux 3.19.0-20-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  Date: Sun Jun 14 15:34:46 2015
  InstallationDate: Installed on 2015-05-28 (16 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  SourcePackage: openssl
  UpgradeStatus: No upgrade log present (probably fresh install)

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