CVE CVE-2019-9791 Mappings

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.


Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name
CVE-2019-9791 Thunderbird uncategorized T1203 Exploitation for Client Execution