Affected versions allow arbitrary caller-provided code to execute before the lifetime of main.
If the caller-provided code accesses particular pieces of the standard library that require an initialized Rust runtime, such as std::io or std::thread, these may not behave as documented. Panics are likely; UB is possible.
The flaw was corrected by enforcing that only code written within the inventory crate, which is guaranteed not to access runtime-dependent parts of the standard library, runs before main. Caller-provided code is restricted to running at compile time.
{
"github_reviewed": true,
"cwe_ids": [],
"nvd_published_at": null,
"github_reviewed_at": "2023-09-11T20:43:17Z",
"severity": "MODERATE"
}