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advisory-db/crates/crayon/RUSTSEC-2020-0037.md
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[advisory]
id = "RUSTSEC-2020-0037"
package = "crayon"
aliases = ["CVE-2020-35889"]
date = "2020-08-31"
informational = "unsound"
url = "https://github.com/shawnscode/crayon/issues/87"

[versions]
patched = []

Misbehaving HandleLike implementation can lead to memory safety violation

Unsafe code in ObjectPool has time-of-check to time-of-use (TOCTOU) bug that can eventually lead to a memory safety violation. ObjectPool and HandlePool implicitly assumes that HandleLike trait methods are pure, i.e., they always return the same value. However, this assumption is unsound since HandleLike is a safe, public trait that allows a custom implementation.