Format string bugs, buufer overflows.
vulners.com/securityvulns/securityvulns:doc:5132
vulners.com/securityvulns/securityvulns:doc:5142
vulners.com/securityvulns/securityvulns:doc:5187
vulners.com/securityvulns/securityvulns:doc:5188
vulners.com/securityvulns/securityvulns:doc:5367