- Reported
-
- Issued
-
- Package
-
atomic-option
(crates.io)
- Type
-
Vulnerability
- Categories
-
- Aliases
-
- References
-
- CVSS Score
- 5.9
MEDIUM
- CVSS Details
-
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Patched
-
no patched versions
Description
In the affected versions of this crate,
AtomicOption<T> unconditionally implements Sync.
This allows programmers to move non-Sync types across thread boundaries (e.g. Rc<T>, Arc<Cell<T>>), which can lead to data races and undefined behavior.
It is also possible to send non-Send types like std::sync::MutexGuard to other threads, which can lead to undefined behavior.
Advisory available under CC0-1.0
license.