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CVE-2020-35886 — Vulnerability in arr — CVE Details

CRITICAL

Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr

Published August 25, 2021Updated March 15, 2024Source: osv

Summary

arr crate contains multiple security issues. Specifically, 1. It incorrectly implements Sync/Send bounds, which allows to smuggle non-Sync/Send types across the thread boundary. 2. Index and IndexMut implementation does not check the array bound. 3. Array::new_from_template() drops uninitialized memory.

Advisory Timeline

  • First published August 25, 2021 (1874 days ago).
  • Last revised March 15, 2024 — 932 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
arr
crates.io
All versionsRange-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2020-35886?
Multiple security issues including data race, buffer overflow, and uninitialized memory drop in arr This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2020-35886?
CVE-2020-35886 affects arr. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-35886 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-36xw-hgfv-jwm7
CVE-2020-35887
CVE-2020-35888
GHSA-c7fw-cr3w-wvfc
GHSA-fhvj-7f9p-w788
RUSTSEC-2020-0034

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