advisory-db/crates/libsbc/RUSTSEC-2020-0120.md

[advisory]
id = "RUSTSEC-2020-0120"
package = "libsbc"
date = "2020-11-10"
url = "https://github.com/mvertescher/libsbc-rs/issues/4"
categories = ["memory-corruption", "thread-safety"]
informational = "unsound"
aliases = ["CVE-2020-36440", "GHSA-f6g6-54hm-fhxv"]
cvss = "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"

[versions]
patched = [">= 0.1.5"]

Decoder<R> can carry R: !Send to other threads

Affected versions of this crate implements Send for Decoder<R> for any R: Read. This allows Decoder<R> to contain R: !Send and carry (move) it to another thread.

This can result in undefined behavior such as memory corruption from data race on R, or dropping R = MutexGuard<_> from a thread that didn't lock the mutex.

The flaw was corrected in commit a34d6e1 by adding trait bound R: Send to the Send impl for Decoder<R>.