marcobambini/gravity

Creolabs Gravity before 0.9.6 contains a heap buffer overflow vulnerability in the gravity_vm_exec function that allows attackers to write out-of-bounds memory by crafting scripts with many string literals at global scope. Attackers can exploit insufficient bounds checking in gravity_fiber_reassign() to corrupt heap metadata and achieve arbitrary code execution in applications that evaluate untrusted scripts.

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function list_iterator_next() located in gravity_core.c. It allows an attacker to cause Denial of Service.

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service.

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function gravity_string_to_value() located in gravity_value.c. It allows an attacker to cause Denial of Service.

An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_add_check() located in gravity_ircode.c. It allows an attacker to cause Denial of Service.

An issue was discovered in gravity through 0.8.1. A heap-buffer-overflow exists in the function gnode_function_add_upvalue located in gravity_ast.c. It allows an attacker to cause code Execution.

Gravity before 0.5.1 does not support a maximum recursion depth.

Creolabs Gravity 1.0 contains a stack based buffer overflow in the operator_string_add function, resulting in remote code execution.

Creolabs Gravity Version: 1.0 Heap Overflow Potential Code Execution. By creating a large loop whiling pushing data to a buffer, we can break out of the bounds checking of that buffer. When list.join is called on the data it will read past a buffer resulting in a Heap-Buffer-Overflow.

Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. An example of a Heap-Use-After-Free after the 'sublexer' pointer has been freed. Line 542 of gravity_lexer.c. 'lexer' is being used to access a variable but 'lexer' has already been freed, creating a Heap Use-After-Free condition.

Creolabs Gravity version 1.0 is vulnerable to a Double Free in gravity_value resulting potentially leading to modification of unexpected memory locations

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.