CVE-2013-0340 Information

Description

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function which allows remote attackers to cause a denial of service (resource consumption) send HTTP requests to intranet servers or read arbitrary files via a crafted XML document aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion the responsibility for resolving this issue lies with application developers; according to this argument this entry should be REJECTed and each affected application would need its own CVE.

Reference

http://openwall.com/lists/oss-security/2013/02/22/3 http://securitytracker.com/id?1028213 http://www.openwall.com/lists/oss-security/2013/04/12/6 http://www.osvdb.org/90634 http://www.securityfocus.com/bid/58233 https://security.gentoo.org/glsa/201701-21