RUSTSEC-2020-0013: 
Rust vulnerability analysis and mitigation

The vulnerability (RUSTSEC-2020-0013) was identified in the spin crate before version 0.5.2 for Rust programming language. The issue specifically affects the RwLock implementation, where a synchronization flaw could allow multiple writers to acquire the lock simultaneously (NVD).

The vulnerability stems from improper synchronization (CWE-662) in the RwLock implementation, where memory ordering is mishandled. This synchronization issue violates mutual exclusion principles by potentially allowing two writers to acquire the lock at the same time. The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (NVD).

The vulnerability can lead to race conditions and potential data corruption due to multiple writers accessing protected resources simultaneously. This violates the fundamental mutual exclusion guarantee that RwLock is supposed to provide, which could result in high availability impacts on affected systems (NVD).

The vulnerability has a low attack complexity (AC:L) and requires no privileges (PR:N) or user interaction (UI:N) to exploit, making it relatively straightforward to trigger in affected systems (NVD).

The vulnerability has been fixed in spin crate version 0.5.2 and later. Users are strongly advised to upgrade to this version or newer to address the synchronization issue (NVD).