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Withdrawn Advisory: urlnorm vulnerable to Regular Expression Denial of Service

High severity GitHub Reviewed Published Jun 21, 2023 to the GitHub Advisory Database • Updated Mar 11, 2025
Withdrawn This advisory was withdrawn on Mar 11, 2025

Package

cargo urlnorm (Rust)

Affected versions

<= 0.1.4

Patched versions

None

Description

Withdrawn Advisory

This advisory has been withdrawn because the security impact of the slow printing of URLs has been disputed. This link is maintained to preserve external references.

Original Description

The urlnorm crate through 0.1.4 for Rust allows Regular Expression Denial of Service (ReDos) via a crafted URL to lib.rs.

References

Published by the National Vulnerability Database Jun 21, 2023
Published to the GitHub Advisory Database Jun 21, 2023
Reviewed Jun 21, 2023
Withdrawn Mar 11, 2025
Last updated Mar 11, 2025

Severity

High

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
Network
Attack complexity
Low
Privileges required
None
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:N/AC:L/PR:N/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.
(65th percentile)

Weaknesses

CVE ID

CVE-2023-33289

GHSA ID

GHSA-fqhp-rhm6-8rrj

Source code

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