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Gmane
From: Marc Deslauriers <marc.deslauriers <at> canonical.com>
Subject: [USN-1896-1] Module::Signature perl module vulnerability
Newsgroups: gmane.linux.ubuntu.security.announce
Date: Wednesday 3rd July 2013 13:05:17 UTC (over 3 years ago)
==========================================================================
Ubuntu Security Notice USN-1896-1
July 03, 2013

libmodule-signature-perl vulnerability
==========================================================================

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Module::Signature could be made to run programs if it verified a signature.

Software Description:
- libmodule-signature-perl: module to manipulate CPAN SIGNATURE files

Details:

Florian Weimer discovered that the Module::Signature perl module
incorrectly loaded unknown ciphers from relative directories. An attacker
could possibly use this flaw to execute arbitrary code when a signature is
verified.

Update instructions:

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

Ubuntu 13.04:
  libmodule-signature-perl        0.68-1ubuntu0.13.04.1

Ubuntu 12.10:
  libmodule-signature-perl        0.68-1ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  libmodule-signature-perl        0.68-1ubuntu0.12.04.1

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

References:
  http://www.ubuntu.com/usn/usn-1896-1
  CVE-2013-2145

Package Information:

https://launchpad.net/ubuntu/+source/libmodule-signature-perl/0.68-1ubuntu0.13.04.1

https://launchpad.net/ubuntu/+source/libmodule-signature-perl/0.68-1ubuntu0.12.10.1

https://launchpad.net/ubuntu/+source/libmodule-signature-perl/0.68-1ubuntu0.12.04.1
 
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