Stack overflow, NULL pointer dereference, integer overflows.
vulners.com/securityvulns/securityvulns:doc:6578
vulners.com/securityvulns/securityvulns:doc:6579
vulners.com/securityvulns/securityvulns:doc:6651
vulners.com/securityvulns/securityvulns:doc:7048