CVE-2020-36437: Data race in conqueue
(updated )
Affected versions of this crate unconditionally implemented Send/Sync for QueueSender<T>, allowing to send non-Send T to other threads by invoking (&QueueSender<T>).send().
This fails to prevent users from creating data races by sending types like Rc<T> or Arc<Cell<T>> to other threads, which can lead to memory corruption. The flaw was corrected in commit 1e462c3 by imposing T: Send to both Send/Sync impls for QueueSender<T>/QueueReceiver<T>.
References
- github.com/advisories/GHSA-368f-29c3-4f2r
- github.com/longshorej/conqueue
- github.com/longshorej/conqueue/commit/1e462c32e7933821ddb26dc49fd4ffa5aeca97b8
- nvd.nist.gov/vuln/detail/CVE-2020-36437
- raw.githubusercontent.com/rustsec/advisory-db/main/crates/conqueue/RUSTSEC-2020-0117.md
- rustsec.org/advisories/RUSTSEC-2020-0117.html
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