Tor Onion Service Descriptor resource consumption_CVE-2025-4444

6.3 / 10

MEDIUM

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

Description

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.

Basic Information

ID CVE-2025-4444

Source VulDB

Published Sep 18, 2025 at 13:58

Modified Sep 18, 2025 at 14:00

Affected Product

Vendor n/a

Product Tor

Version 0.4.7.0

Affected Versions n/a Tor 0.4.7.0
n/a Tor 0.4.7.1
n/a Tor 0.4.7.2
n/a Tor 0.4.7.3
n/a Tor 0.4.7.4
n/a Tor 0.4.7.5
n/a Tor 0.4.7.6
n/a Tor 0.4.7.7
n/a Tor 0.4.7.8
n/a Tor 0.4.7.9
n/a Tor 0.4.7.10
n/a Tor 0.4.7.11
n/a Tor 0.4.7.12
n/a Tor 0.4.7.13
n/a Tor 0.4.7.14
n/a Tor 0.4.7.15
n/a Tor 0.4.7.16
n/a Tor 0.4.8.0
n/a Tor 0.4.8.1
n/a Tor 0.4.8.2
n/a Tor 0.4.8.3
n/a Tor 0.4.8.4
n/a Tor 0.4.8.5
n/a Tor 0.4.8.6
n/a Tor 0.4.8.7
n/a Tor 0.4.8.8
n/a Tor 0.4.8.9
n/a Tor 0.4.8.10
n/a Tor 0.4.8.11
n/a Tor 0.4.8.12
n/a Tor 0.4.8.13
n/a Tor 0.4.8.14
n/a Tor 0.4.8.15
n/a Tor 0.4.8.16
n/a Tor 0.4.8.17

CWE Classification

CWE-400 CWE-404

References

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    "lastseen": "",
    "description": "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.",
    "published": "2025-09-18T13:58:52.524Z",
    "modified": "2025-09-18T14:00:17.385Z",
    "type": "cve",
    "title": "Tor Onion Service Descriptor resource consumption",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.324814\nhttps://vuldb.com/?ctiid.324814\nhttps://vuldb.com/?submit.640605\nhttps://github.com/chunmianwang/Tordos\nhttps://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes\nhttps://forum.torproject.org/t/alpha-and-stable-release-0-4-8-18-and-0-4-9-3-alpha/20578",
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