Multiple use-after-free vulnerabilities in the DOM implementation in Blink, as used in Google Chrome before 41.0.2272.76, allow remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger movement of a SCRIPT element to different documents, related to (1) the HTMLScriptElement::didMoveToNewDocument function in core/html/HTMLScriptElement.cpp and (2) the SVGScriptElement::didMoveToNewDocument function in core/svg/SVGScriptElement.cpp.