PySAML2 allows remote attackers to conduct XML external entity (XXE) attacks via a crafted SAML XML request or response.Referenceshttps://github.com/rohe/pysaml2/issues/366https://github.com/rohe/pysaml2/pull/379http://www.openwall.com/lists/oss-security/2017/01/19/5https://github.com/rohe/pysaml2/commit/6e09a25d9b4b7aa7a506853210a9a14100b8bc9bhttp://www.securityfocus.com/bid/95376https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850716