The SimpleXMLRPCServer library module in Python 2.2, 2.3 before 2.3.5, and 2.4, when used by XML-RPC servers that use the register_instance method to register an object without a _dispatch method, allows remote attackers to read or modify globals of the associated module, and possibly execute arbitrary code, via dotted attributes.
http://www.trustix.org/errata/2005/0003/
http://www.securityfocus.com/bid/12437
http://www.redhat.com/support/errata/RHSA-2005-108.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9811
https://exchange.xforce.ibmcloud.com/vulnerabilities/19217
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-0090
http://www.python.org/security/PSF-2005-001/
http://www.mandriva.com/security/advisories?name=MDKSA-2005:035
http://securitytracker.com/id?1013083