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==========================================================================
Ubuntu Security Notice USN-1987-1
October 09, 2013

gnupg, gnupg2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in GnuPG.

Software Description:
- gnupg: GNU privacy guard - a free PGP replacement
- gnupg2: GNU privacy guard - a free PGP replacement

Details:

Daniel Kahn Gillmor discovered that GnuPG treated keys with empty usage
flags as being valid for all usages. (CVE-2013-4351)

Taylor R Campbell discovered that GnuPG incorrectly handled certain OpenPGP
messages. If a user or automated system were tricked into processing a
specially-crafted message, GnuPG could consume resources, resulting in a
denial of service. (CVE-2013-4402)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 13.04:
  gnupg                           1.4.12-7ubuntu1.2
  gnupg2                          2.0.19-2ubuntu1.1

Ubuntu 12.10:
  gnupg                           1.4.11-3ubuntu4.3
  gnupg2                          2.0.17-2ubuntu3.2

Ubuntu 12.04 LTS:
  gnupg                           1.4.11-3ubuntu2.4
  gnupg2                          2.0.17-2ubuntu2.12.04.3

Ubuntu 10.04 LTS:
  gnupg                           1.4.10-2ubuntu1.4
  gnupg2                          2.0.14-1ubuntu1.6

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1987-1
  CVE-2013-4351, CVE-2013-4402

Package Information:
  https://launchpad.net/ubuntu/+source/gnupg/1.4.12-7ubuntu1.2
  https://launchpad.net/ubuntu/+source/gnupg2/2.0.19-2ubuntu1.1
  https://launchpad.net/ubuntu/+source/gnupg/1.4.11-3ubuntu4.3
  https://launchpad.net/ubuntu/+source/gnupg2/2.0.17-2ubuntu3.2
  https://launchpad.net/ubuntu/+source/gnupg/1.4.11-3ubuntu2.4
  https://launchpad.net/ubuntu/+source/gnupg2/2.0.17-2ubuntu2.12.04.3
  https://launchpad.net/ubuntu/+source/gnupg/1.4.10-2ubuntu1.4
  https://launchpad.net/ubuntu/+source/gnupg2/2.0.14-1ubuntu1.6



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Version: GnuPG v1.4.14 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

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=d7Ys
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