Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsThere is no fixed version for lua
.
Affected versions of this package are vulnerable to Sandbox Bypass by exploiting a use after free vulnerability in the garbage collector and finalizer of lgc.c
in the Lua interpreter, allowing the escape by using a crafted script file.
The script file uses the use after free
vulnerability to allow tcache bin poisoning which can change the address of the next chunk in tcache bin. With that, a chunk at __free_hook
is being allocated and the address of the system
function is written in it, leading to a /bin/sh
shell.