GHSA-3jc5-5hc5-33gjHighCVSS 7.8

Data races in conquer-once

Published
August 25, 2021
Last Modified
June 13, 2023

🔗 CVE IDs covered (1)

CVE-2020-36208 →

📋 Description

Affected versions of conquer-once implements Sync for its OnceCell type without restricting it to Sendable types.

This allows non-Send but Sync types such as MutexGuard to be sent across threads leading to undefined behavior and memory corruption in concurrent programs.

The issue was fixed by adding a Send constraint to OnceCell.

🎯 Affected products1

  • rust/conquer-once:< 0.3.2

🔗 References (4)