Creolabs Gravity vulnerabilities

A heap buffer overflow vulnerability exists in Creolabs Gravity before version 0.9.6 in the gravity_vm_exec function. Attackers can exploit scripts with many string literals at global scope to write out-of-bounds memory.

In Creolabs Gravity version 1.0, there is a heap buffer overflow vulnerability that may lead to code execution. By creating a large loop while pushing data to a buffer, the bounds checking of that buffer can be bypassed.

Creolabs Gravity version 1.0 is vulnerable to a stack overflow in the memcmp function.

Creolabs Gravity version 1.0 is vulnerable to a stack overflow in the string_repeat() function.

Creolabs Gravity version 1.0 is vulnerable to a heap overflow in an undisclosed component that can result in arbitrary code execution.