Advisories

Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec

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severity
critical
date
Affecting
  • Creolabs Gravity < 0.9.6

CWE
  • CWE-122 Heap-based Buffer Overflow
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
segv0x
Description
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.

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