Preface Hi, I’m stypr (@stereotype32 ) from Flatt Security Inc. Last year, I wrote a blog post about technical explanations about 0days found in Japanese OSS products. I have found a lot of vulnerabilities in various products since then. Unfortunately, most bugs I found did not get it fixed right away, so I did not get any chances to share some exciting vulnerabilities I found until today. This article will explain how I found various vulnerabilities and chained some of the vulnerabilities ...