Loading...
Skip to main content
GeekWala

CVE-2023-42444 — Vulnerability in phonenumber — CVE Details

HIGH

phonenumber panics on parsing crafted RFC3966 inputs

Published September 21, 2023Updated March 13, 2026Source: osv

Summary

### Impact The phonenumber parsing code may panic due to a panic-guarded out-of-bounds access on the phonenumber string. In a typical deployment of `rust-phonenumber`, this may get triggered by feeding a maliciously crafted phonenumber over the network, specifically the string `.;phone-context=`. ### Patches Patches will be published as version `0.3.3+8.13.9` and backported as `0.2.5+8.11.3`. ### Workarounds n.a. ### References n.a.

Advisory Timeline

  • First published September 21, 2023 (1117 days ago).
  • Last revised March 13, 2026 — 904 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update phonenumber to 0.2.5 or later
cargo update -p phonenumber --precise 0.2.5
Cargo
Update phonenumber to 0.3.3 or later
cargo update -p phonenumber --precise 0.3.3

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

Affected Packages (2)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
phonenumber
crates.io
All versions0.2.5
phonenumber
crates.io
All versions0.3.3

Vulnerability Classification

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

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-2023-42444?
phonenumber panics on parsing crafted RFC3966 inputs 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-2023-42444?
CVE-2023-42444 affects phonenumber. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-42444 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-whhr-7f2w-qqj2
RUSTSEC-2023-0082

Related CVEs

  • CVE-2024-39697
    CRITICAL

    panic on parsing crafted phonenumber inputs

  • CVE-2024-39697
    HIGH

    phonenumber: panic on parsing crafted phonenumber inputs

  • CVE-2026-93657
    HIGH

    hickory-resolver: Resolver::lookup() and Resolver::lookup_ip() APIs obscure DNSSEC validation failures

  • CVE-2026-18140
    HIGH

    aws-smithy-json: Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers

More crates.io advisories

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies