longshorej/conqueue · Security
Data race in conqueue
- GHSA ID
- GHSA-368f-29c3-4f2r
- CVE ID
- CVE-2020-36437
- Severity
- high
- Published
- Updated
- CVSS
- 8.1 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 8.1 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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>.
CWEs
- CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-36437 ↗
- https://rustsec.org/advisories/RUSTSEC-2020-0117.html ↗
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/conqueue/RUSTSEC-2020-0117.md ↗
- https://github.com/longshorej/conqueue/commit/1e462c32e7933821ddb26dc49fd4ffa5aeca97b8 ↗
- https://github.com/advisories/GHSA-368f-29c3-4f2r ↗