CVE-2017-9233
XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.
Date published : 2017-07-25
http://www.securityfocus.com/bid/99276
https://github.com/libexpat/libexpat/blob/master/expat/Changes