Article: Vulnerability In XML Libraries Discovered ... what are the vulnerabilities?

Hi Folks,

This article [1] says that:

    Researchers have uncovered numerous vulnerabilities 
    in popular XML libraries from Sun Microsystems, 
    Python and the Apache Software Foundation.

But it doesn't say *what* the vulnerabilities are. 

It says that:

    More details about some of the XML vulnerabilities 
    that were found [will be released] at the Hacker Halted  
    2009 security conference in Miami, Florida, in September.

Do you have information on specifically what the vulnerabilities are?

/Roger

[1] http://www.eweekeurope.co.uk/news/vulnerability-in-xml-libraries-discovered-1554