The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876. (CVE-2016-5300)
Impact
An attacker may be able to cause a denial-of-service (DoS) attack by way of crafted identifiers in an XML document.