kvark/ticketed_lock · Security
Data races in ticketed_lock
- GHSA ID
- GHSA-77m6-x95j-75r5
- CVE ID
- CVE-2020-36439
- 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 for ReadTicket & WriteTicket. This allows to send non-Send T to other threads. This can allows creating data races by cloning types with internal mutability and sending them to other threads (as T of ReadTicket/WriteTicket). Such data races can cause memory corruption or other undefined behavior. The flaw was corrected in commit a986a93 by adding T: Send bounds to Send impls of ReadTicket/WriteTicket.
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-2020-36439 ↗
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/ticketed_lock/RUSTSEC-2020-0119.md ↗
- https://rustsec.org/advisories/RUSTSEC-2020-0119.html ↗
- https://github.com/kvark/ticketed_lock/issues/7 ↗
- https://github.com/kvark/ticketed_lock/commit/a986a9335d591fa5c826157d1674d47aa525357f ↗
- https://github.com/advisories/GHSA-77m6-x95j-75r5 ↗