Ubuntu 15.04 LTS USN-2607-1 Moderate: libmodule-signature-perl Issues

ubuntu

May 12, 2015

Several security issues were fixed in Module::Signature.

Summary

Several security issues were fixed in Module::Signature.

Software Description:

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

Details:

John Lightsey discovered that Module::Signature incorrectly handled PGP

signature boundaries. A remote attacker could use this issue to trick

Module::Signature into parsing the unsigned portion of the SIGNATURE file

as the signed portion. (CVE-2015-3406)

John Lightsey discovered that Module::Signature incorrectly handled files

that were not listed in the SIGNATURE file. A remote attacker could use

this flaw to execute arbitrary code when tests were run. (CVE-2015-3407)

John Lightsey discovered that Module::Signature incorrectly handled

embedded shell commands in the SIGNATURE file. A remote attacker could use

this issue to execute arbitrary code during signature verification.

(CVE-2015-3408)

John Lightsey discovered that Module::Signature incorrectly handled module

loading. A remote attacker could ...

Read the Full Advisory

Topics Covered

security advisory moderate remote code execution Ubuntu libmodule-signature-perl

Update Instructions

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

Ubuntu 15.04:
  libmodule-signature-perl        0.73-1ubuntu0.15.04.1

Ubuntu 14.10:
  libmodule-signature-perl        0.73-1ubuntu0.14.10.1

Ubuntu 14.04 LTS:
  libmodule-signature-perl        0.73-1ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  libmodule-signature-perl        0.68-1ubuntu0.12.04.2

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