Overview
- Description
- An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-005. Hashing is mishandled for certain retrieval of circuit data. Consequently. an attacker can trigger the use of an attacker-chosen circuit ID to cause algorithm inefficiency.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-400
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C2666B22-DC07-4BFA-A756-3DC4E970EBDD",
"versionEndExcluding": "0.3.5.15"
},
{
"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "072B35B0-7EBF-4652-BB89-12B4BEC9A8EF",
"versionEndExcluding": "0.4.4.9",
"versionStartIncluding": "0.4.0.0"
},
{
"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "57ED9234-622B-4B0D-8E29-2851A87DE0D1",
"versionEndExcluding": "0.4.5.9",
"versionStartIncluding": "0.4.5.0"
},
{
"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EFD89230-DBEF-4134-9C42-8187CE542B7C",
"versionEndExcluding": "0.4.6.5",
"versionStartIncluding": "0.4.6.0"
}
],
"operator": "OR"
}
]
}
]