Splunk: CVE-2023-32706: Denial Of Service due to Untrusted XML Tag in XML Parser within SAML Authentication

An unauthenticated attacker can send specially-crafted messages to the XML parser within SAML authentication to cause a denial of service in the Splunk daemon. This happens when an incorrectly configured XML parser receives XML input that contains a reference to an entity expansion. Many recursive references to entity expansions can cause the XML parser to use all available memory on the machine, causing the Splunk daemon to crash or be terminated by the operating system.