Overview
- Description
- An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
- 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
- NVD-CWE-noinfo
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"matchCriteriaId": "BA646A7D-281C-42A3-871D-52717568E9E1",
"versionEndExcluding": "4.1.18"
},
{
"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "50CF7B72-84F0-4AC6-B0E4-FCAF4F6AAC1E",
"versionEndExcluding": "4.2.5",
"versionStartIncluding": "4.2.0"
},
{
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"vulnerable": true,
"matchCriteriaId": "4EA496E5-4565-4D4A-A0A3-F1B95D33B53E",
"versionEndExcluding": "4.3.5",
"versionStartIncluding": "4.3.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
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"negate": false,
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