CVE-2020-36439 — Data races in ticketed_lock — CVE Details

HIGH

Data races in ticketed_lock

Published August 25, 2021Updated November 8, 2023Source: osv

Summary

Affected versions of this crate unconditionally implemented Send for ReadTicket<T> & WriteTicket<T>. This allows to send non-Send T to other threads. This can allows creating data races by cloning types with internal mutability and sending them to other threads (as T of ReadTicket<T>/WriteTicket<T>). Such data races can cause memory corruption or other undefined behavior. The flaw was corrected in commit `a986a93` by adding T: Send bounds to Send impls of ReadTicket<T>/WriteTicket<T>.

Advisory Timeline

First published August 25, 2021 (1874 days ago).
Last revised November 8, 2023 — 804 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo

Update ticketed_lock to 0.3.0 or later

cargo update -p ticketed_lock --precise 0.3.0

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

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

Package	Ecosystem	Affected	Fixed In
ticketed_lock	crates.io	All versions	0.3.0

Vulnerability Classification

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

CWE-119
Buffer OverflowMITRE
CWE-362
View on MITRE

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-2020-36439?: Data races in ticketed_lock 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-2020-36439?: CVE-2020-36439 affects ticketed_lock. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-36439 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.1

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-77m6-x95j-75r5

GHSA-gq4h-f254-7cw9

RUSTSEC-2020-0119

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