Microsoft has just updated the following KB Article
Description of Cumulative Update 2 for the System Center 2012 R2 Configuration Manager Clients for Linux and Unix
Summary:
This article describes the issues that are fixed and the functionality that is updated in Cumulative Update 2 (CU2) for Microsoft System Center 2012 R2 Configuration Manager Client for UNIX and Linux. The System Center 2012 R2 CU2 clients for UNIX and Linux can be used with both System Center 2012 Configuration Manager SP1 and System Center 2012 R2 Configuration Manager.