krl/cache · Security
Data races in cache
- GHSA ID
- GHSA-g78p-g85h-q6ww
- CVE ID
- CVE-2020-36448
- 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
An issue was discovered in the cache crate through 2020-11-24 for Rust.
Affected versions of this crate unconditionally implement Send/Sync for Cache<K>.
This allows users to insert K that is not Send or not Sync.
This allows users to create data races by using non-Send types like Arc<Cell<T>> or Rc<T> as K in Cache<K>. It is also possible to create data races by using types like Cell<T> or RefCell<T> (types that are Send but not Sync).
Such data races can lead to memory corruption.
CWEs
- CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')