There is a file which is way too big to be a valid postscript file.
It could be just a honest mistake by the creator, or it could be an exploit.
If it is an exploit, does it belong to Security or rather to Reverse Engineering?
How should the (1.5 MB) code be posted? (VirusTotal did not find it to be malware)
As of @Patrick's question, this is about identifying it as an exploit and getting a description how it works.
As of his suggestion to post on meta, there is now a question on meta.security.