Bugs causing remote DoS and under some specific conditions to code execution.
vulners.com/securityvulns/securityvulns:doc:4604
vulners.com/securityvulns/securityvulns:doc:4623
vulners.com/securityvulns/securityvulns:doc:4638
vulners.com/securityvulns/securityvulns:doc:4683