Buffer overflows, memory corruptions,code execution on PDF parsing.
vulners.com/securityvulns/securityvulns:doc:20813
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vulners.com/securityvulns/securityvulns:doc:20815
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vulners.com/securityvulns/securityvulns:doc:20817
vulners.com/securityvulns/securityvulns:doc:20818
vulners.com/securityvulns/securityvulns:doc:20819
vulners.com/securityvulns/securityvulns:doc:20821