cve/2019/CVE-2019-9791.md

CVE-2019-9791

Description

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1530958
• https://bugzilla.mozilla.org/show_bug.cgi?id=1530958

Github

• https://github.com/RUB-SysSec/JIT-Picker
• https://github.com/Sp0pielar/CVE-2019-9791
• https://github.com/ZihanYe/web-browser-vulnerabilities
• https://github.com/googleprojectzero/fuzzilli
• https://github.com/tunz/js-vuln-db
• https://github.com/ulexec/Exploits
• https://github.com/zhangjiahui-buaa/MasterThesis