Description
The xmlrpc extension in PHP 5.3.1 does not properly handle a missing methodName element in the first argument to the xmlrpc_decode_request function, which allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) and possibly have unspecified other impact via a crafted argument.
Remediation
References
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Squid Insufficient Verification of Data Authenticity Vulnerability (CVE-2016-4553)
Jboss EAP Deserialization of Untrusted Data Vulnerability (CVE-2019-10202)