[Bug 1133333] Re: SSL read error: decryption failed or bad record mac

[Marc Deslauriers]

I believe this is related to AES-NI. For testing, could you please try
setting the following environment variable to disable AES-NI before
launching your irc client from the command line:

export OPENSSL_ia32cap=~0x200000200000000

** Bug watch added: OpenSSL RT #3002
   http://rt.openssl.org/Ticket/Display.html?id=3002

** Also affects: openssl via
   http://rt.openssl.org/Ticket/Display.html?id=3002
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1133333

Title:
  SSL read error: decryption failed or bad record mac

Status in OpenSSL cryptography and SSL/TLS toolkit:
  Unknown
Status in “openssl” package in Ubuntu:
  New
Status in “openssl” package in Debian:
  Unknown

Bug description:
  I have Ubuntu-12.10/irssi 0.8.15/libssl 1.0.1c-3. After connecting
  successfully to an SSL IRC server and joining some channel on it, I get
  the error

  read error: decryption failed or bad record mac

  after which the connection terminates. I didn't have any problem with
  this before, the error started to occur only yesterday after an Ubuntu
  security update from libssl 1.0.1c-3ubuntu2 to 1.0.1c-3ubuntu2.1. Using
  the version 1.0.1c-3ubuntu2 of libssl and libcrypto gets rid of the
  problem.
  --- 
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: amd64
  DistroRelease: Ubuntu 12.10
  InstallationDate: Installed on 2013-02-15 (10 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MarkForUpload: True
  Package: openssl 1.0.1c-3ubuntu2.1
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.5.0-25.38-generic 3.5.7.4
  Tags:  quantal running-unity
  Uname: Linux 3.5.0-25-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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