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CVE-2020-35711 — Dangling reference in arc-swap — CVE Details

HIGH

Dangling reference in `access::Map` with Constant

Published May 24, 2022Updated November 8, 2023Source: osv

Summary

An issue has been discovered in the arc-swap crate before 0.4.8 (and 1.x before 1.1.0) for Rust. Use of arc_swap::access::Map with the Constant test helper (or with a user-supplied implementation of the Access trait) could sometimes lead to dangling references being returned by the map.

Advisory Timeline

  • First published May 24, 2022 (1602 days ago).
  • Last revised November 8, 2023 — 532 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update arc-swap to 1.1.0 or later
cargo update -p arc-swap --precise 1.1.0
Cargo
Update arc-swap to 0.4.8 or later
cargo update -p arc-swap --precise 0.4.8

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

Affected Packages (2)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
arc-swap
crates.io
All versions1.1.0
arc-swap
crates.io
All versions0.4.8

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2020-35711?
Dangling reference in `access::Map` with Constant This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2020-35711?
CVE-2020-35711 affects arc-swap. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-35711 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-9pqx-g3jh-qpqq
RUSTSEC-2020-0091

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