GHSA-4R78-HX75-JJJ2 golang.org/x/net/html has Improper Restriction of Operations within the Bounds of a Memory Buffer

The html package aka x/net/html through 2018-09-25 in Go mishandles , leading to a panic: runtime error index out of range in nodeStack.pop in node.go, called from parser.clearActiveFormattingElements, during an html.Parse call...