SOAPpy 0.12.5 does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted SOAP request containing a large number of nested entity references.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-3243
• http://seclists.org/fulldisclosure/2014/May/20
• http://www.openwall.com/lists/oss-security/2014/05/06/1
• http://www.openwall.com/lists/oss-security/2014/05/06/9
• kiorky/SOAPpy@64125a2
• kiorky/SOAPpy@a386568
• https://github.com/kiorky/SOAPpy/blob/develop/CHANGES.txt#L32-L37
• https://web.archive.org/web/20150501220613/http://www.pnigos.com/?p=260
• https://web.archive.org/web/20200229062311/http://www.securityfocus.com/bid/67216