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Improper `Sync` implementation on `FuturesUnordered` in futures-utils can cause data corruption

Moderate severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jun 22, 2023

Package

cargo futures-util (Rust)

Affected versions

>= 0.3.0, < 0.3.2

Patched versions

0.3.2

Description

An issue was discovered in the futures-util crate before 0.3.2 for Rust. FuturesUnordered can lead to data corruption because Sync is mishandled.

References

Published by the National Vulnerability Database Dec 31, 2020
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jun 16, 2022
Last updated Jun 22, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(15th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2020-35908

GHSA ID

GHSA-5r9g-j7jj-hw6c

Source code

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