Type 1 font handling messed up by December 11, 2012 update KB2753842
Please be informed, that MS12-078 now has been updated – you can read more about the update here: http://technet.microsoft.com/en-us/security/bulletin/ms12-078
Why was this bulletin rereleased on December 20, 2012?
Microsoft rereleased this bulletin to address a known issue in the KB2753842 update related to OpenType Fonts (OTF) not properly rendering in applications after the original update was applied. Customers who have successfully installed the original KB2753842 update are protected from the vulnerability described in CVE-2012-2556. However, customers need to install the rereleased KB2753842 update to resolve the issue with improper OpenType font rendering and to keep the affected binaries up to date.
- We are aware of issues related to OpenType Font (OTF) rendering in applications such as PowerPoint on affected versions of Windows that occur after this security update is applied. We are currently investigating these issues and will take appropriate action to address the known issues. "
Official statement by Microsoft showcasing they are aware of the issue and are investigating.