CVE-2025-4444
6.3
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | Tor | 0.4.7.0 | affected |
| n/a | Tor | 0.4.7.1 | affected |
| n/a | Tor | 0.4.7.2 | affected |
| n/a | Tor | 0.4.7.3 | affected |
| n/a | Tor | 0.4.7.4 | affected |
| n/a | Tor | 0.4.7.5 | affected |
| n/a | Tor | 0.4.7.6 | affected |
| n/a | Tor | 0.4.7.7 | affected |
| n/a | Tor | 0.4.7.8 | affected |
| n/a | Tor | 0.4.7.9 | affected |
| n/a | Tor | 0.4.7.10 | affected |
| n/a | Tor | 0.4.7.11 | affected |
| n/a | Tor | 0.4.7.12 | affected |
| n/a | Tor | 0.4.7.13 | affected |
| n/a | Tor | 0.4.7.14 | affected |
| n/a | Tor | 0.4.7.15 | affected |
| n/a | Tor | 0.4.7.16 | affected |
| n/a | Tor | 0.4.8.0 | affected |
| n/a | Tor | 0.4.8.1 | affected |
| n/a | Tor | 0.4.8.2 | affected |
| n/a | Tor | 0.4.8.3 | affected |
| n/a | Tor | 0.4.8.4 | affected |
| n/a | Tor | 0.4.8.5 | affected |
| n/a | Tor | 0.4.8.6 | affected |
| n/a | Tor | 0.4.8.7 | affected |
| n/a | Tor | 0.4.8.8 | affected |
| n/a | Tor | 0.4.8.9 | affected |
| n/a | Tor | 0.4.8.10 | affected |
| n/a | Tor | 0.4.8.11 | affected |
| n/a | Tor | 0.4.8.12 | affected |
| n/a | Tor | 0.4.8.13 | affected |
| n/a | Tor | 0.4.8.14 | affected |
| n/a | Tor | 0.4.8.15 | affected |
| n/a | Tor | 0.4.8.16 | affected |
| n/a | Tor | 0.4.8.17 | affected |
| n/a | Tor | 0.4.8.18 | unaffected |
| n/a | Tor | 0.4.9.3-alpha | unaffected |
Weaknesses
- CWE-400: Resource Consumption
- CWE-404: Denial of Service
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/?id.324814
- https://vuldb.com/?ctiid.324814
- https://vuldb.com/?submit.640605
- https://github.com/chunmianwang/Tordos
- https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes
- https://forum.torproject.org/t/alpha-and-stable-release-0-4-8-18-and-0-4-9-3-alpha/20578
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.