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USN-2607-1: Module::Signature vulnerabilities

12 May 2015

Several security issues were fixed in Module::Signature.

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Releases

Packages

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 use this issue to execute arbitrary code
during signature verification. (CVE-2015-3409)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 15.04
Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04

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