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CVE-2025-4444

Tor Onion Service Descriptor resource consumption

Published
Last modified
published
Not listed in CISA KEV
Fix
Fix or patch referenced
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

A security flaw has been discovered in Tor up to 0.4.7.16/0.4.8.17. Impacted is an unknown function of the component Onion Service Descriptor Handler. Performing manipulation results in resource consumption. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is considered difficult. Upgrading to version 0.4.8.18 and 0.4.9.3-alpha is recommended to address this issue. It is recommended to upgrade the affected component.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • n/a Tor

    0.4.7.0, 0.4.7.1, 0.4.7.2, 0.4.7.3, 0.4.7.4, 0.4.7.5, 0.4.7.6, 0.4.7.7, 0.4.7.8, 0.4.7.9, 0.4.7.10, 0.4.7.11, 0.4.7.12, 0.4.7.13, 0.4.7.14, 0.4.7.15, 0.4.7.16, 0.4.8.0, 0.4.8.1, 0.4.8.2, 0.4.8.3, 0.4.8.4, 0.4.8.5, 0.4.8.6, 0.4.8.7, 0.4.8.8, 0.4.8.9, 0.4.8.10, 0.4.8.11, 0.4.8.12, and 5 more

References 6

vuldb.com

GitHub · chunmianwang/Tordos

gitlab.torproject.org

forum.torproject.org