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WS-2020-0272

Date: August 19, 2025

rcu_cell crate through 0.1.8 unconditionally implements Send/Sync for RcuCell<T>. This allows users to send T: !Send to other threads (while T enclosed within RcuCell<T>), and allows users to concurrently access T: !Sync by using the APIs of RcuCell<T> that provide access to &T. This can result in memory corruption caused by data races.

Language: RUST

Severity Score

Related Resources (6)

https://github.com/Xudong-Huang/rcu_cell/commit/1faf18eee11f14969b77ae0f76dcd9ebd437d0c2
https://github.com/Xudong-Huang/rcu_cell/pull/4/commits/1faf18eee11f14969b77ae0f76dcd9ebd437d0c2
https://github.com/Xudong-Huang/rcu_cell/issues/3
https://github.com/Xudong-Huang/rcu_cell
https://rustsec.org/advisories/RUSTSEC-2020-0131.html
https://www.mend.io/vulnerability-database/WS-2020-0272

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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