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CVE-2020-36441 — Vulnerability in abox — CVE Details

HIGH

AtomicBox<T> implements Send/Sync for any `T: Sized`

Published November 10, 2020Updated November 8, 2023Source: osv

Summary

Affected versions of this crate implements `Send`/`Sync` for `AtomicBox<T>` without requiring `T: Send`/`T: Sync`. This allows to create data races to `T: !Sync` and send `T: !Send` to another thread. Such behavior breaks the compile-time thread safety guarantees of Rust, and allows users to incur undefined behavior using safe Rust (e.g. memory corruption from data race). The flaw was corrected in commit 34c2b9e by adding trait bound `T: Send` to `Send` impl for `AtomicBox<T>` and trait bound `T: Sync` to `Sync` impl for `AtomicBox<T>`.

Advisory Timeline

  • First published November 10, 2020 (2162 days ago).
  • Last revised November 8, 2023 — 1093 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update abox to 0.4.1 or later
cargo update -p abox --precise 0.4.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
abox
crates.io
All versions0.4.1

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.1 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2020-36441?
AtomicBox<T> implements Send/Sync for any `T: Sized` This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.1/10).
How do I check if my project is affected by CVE-2020-36441?
CVE-2020-36441 affects abox. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-36441 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.1

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

RUSTSEC-2020-0121
GHSA-r626-fc64-3q28

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