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[USN-1896-1] Module::Signature perl module vulnerability

Posted on 03 July 2013
Ubuntu Security

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Ubuntu Security Notice USN-1896-1
July 03, 2013

libmodule-signature-perl vulnerability
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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 signatur=
e.

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 i=
s
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/0.68-1ubunt=
u0.13.04.1

https://launchpad.net/ubuntu/+source/libmodule-signature-perl/0.68-1ubunt=
u0.12.10.1

https://launchpad.net/ubuntu/+source/libmodule-signature-perl/0.68-1ubunt=
u0.12.04.1



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