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TI-2023-22609 Aliases CVE-2023-42444GHSA-whhr-7f2w-qqj2

phonenumber panics on parsing crafted RF3966 inputs

Priority LOW 39CWE-1284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-248.

Summary

phonenumber is a library for parsing, formatting and validating international phone numbers. Prior to versions `0.3.3+8.13.9` and `0.2.5+8.11.3`, 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=`. Versions `0.3.3+8.13.9` and `0.2.5+8.11.3` contain a patch for this issue. There are no known workarounds.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00867 58th percentileScored 2026-11-07
Fix Fixed rust-phonenumber (whisperfish): 0.2.5+8.11.3, 0.3.3+8.3.19phonenumber (crates.io): 0.2.5, 0.3.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
whisperfishrust-phonenumberbefore 0.2.5+8.11.3; 0.3.0 to before 0.3.3+8.3.190.2.5+8.11.3, 0.3.3+8.3.19Patch availableCNA
—phonenumber (crates.io)before 0.2.50.2.5Patch availableGHSA-whhr-7f2w-qqj2
—phonenumber (crates.io)0.3.0 to before 0.3.30.3.3Patch availableGHSA-whhr-7f2w-qqj2
  • rust-phonenumber Vendorwhisperfish Affected before 0.2.5+8.11.3; 0.3.0 to before 0.3.3+8.3.19 Fixed in 0.2.5+8.11.3, 0.3.3+8.3.19 Patch available CNA
  • phonenumber (crates.io) Vendor— Affected before 0.2.5 Fixed in 0.2.5 Patch available GHSA-whhr-7f2w-qqj2
  • phonenumber (crates.io) Vendor— Affected 0.3.0 to before 0.3.3 Fixed in 0.3.3 Patch available GHSA-whhr-7f2w-qqj2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:whisperfish:phonenumber:*:*:*:*:*:rust:*:*before 0.2.5\+8.11.3; 0.3.0\+8.12.9 to before 0.3.3\+8.13.9Vulnerablewhisperfish
  • cpe:2.3:a:whisperfish:phonenumber:*:*:*:*:*:rust:*:* Versions before 0.2.5\+8.11.3; 0.3.0\+8.12.9 to before 0.3.3\+8.13.9 Vulnerable ·whisperfish

Remediation

  • Fix · CNA rust-phonenumber (whisperfish) Fixed in 0.2.5+8.11.3, 0.3.3+8.3.19
  • Fix · GHSA-whhr-7f2w-qqj2 phonenumber (crates.io) Fixed in 0.2.5 Advisory →
  • Fix · GHSA-whhr-7f2w-qqj2 phonenumber (crates.io) Fixed in 0.3.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-42444
  2. 2026-10-03 Alias added: GHSA-whhr-7f2w-qqj2

References

Patch 2

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences