Several security issues were fixed in Module::Signature.
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)
12 May 2015
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Module::Signature.
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 use this issue to execute arbitrary code during signature verification. (CVE-2015-3409)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon