CVE-2016-5427 - Vulnerability Details - OpenCVE

PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.85547.

Key SSVC decision points have not yet been added.

Vendors	Products
Powerdns	Authoritative

Configuration 1 [-]

cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
Debian DLA	DLA-627-1	pdns security update
Debian DSA	DSA-3664-1	pdns security update

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://www.debian.org/security/2016/dsa-3664
http://www.openwall.com/lists/oss-security/2016/09/09/3
http://www.securityfocus.com/bid/92917
http://www.securitytracker.com/id/1036761
https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/
https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3

History

No history.

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2016-09-21T14:00:00

Updated: 2024-08-06T01:01:00.502Z

Reserved: 2016-06-10T00:00:00

Link: CVE-2016-5427

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2016-09-21T14:25:15.580

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-5427

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-09-09T00:00:00", "descriptions": [{"lang": "en", "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-08-12T09:57:01", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"}, {"name": "1036761", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1036761"}, {"name": "DSA-3664", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "http://www.debian.org/security/2016/dsa-3664"}, {"name": "92917", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/92917"}, {"name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secalert@redhat.com", "ID": "CVE-2016-5427", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3", "refsource": "CONFIRM", "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"}, {"name": "1036761", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1036761"}, {"name": "DSA-3664", "refsource": "DEBIAN", "url": "http://www.debian.org/security/2016/dsa-3664"}, {"name": "92917", "refsource": "BID", "url": "http://www.securityfocus.com/bid/92917"}, {"name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"}, {"name": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/", "refsource": "CONFIRM", "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T01:01:00.502Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"}, {"name": "1036761", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1036761"}, {"name": "DSA-3664", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "http://www.debian.org/security/2016/dsa-3664"}, {"name": "92917", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/92917"}, {"name": "[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-5427", "datePublished": "2016-09-21T14:00:00", "dateReserved": "2016-06-10T00:00:00", "dateUpdated": "2024-08-06T01:01:00.502Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*", "matchCriteriaId": "3E45C5C3-4B73-4FD1-85E7-7C3A9DA5E10B", "versionEndIncluding": "3.4.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query."}, {"lang": "es", "value": "PowerDNS (tambi\u00e9n conocido como pdns) Authoritative Server en versiones anteriores a 3.4.10 no maneja adecuadamente unas etiquetas del interior . (dot), lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU backend) a trav\u00e9s de una consulta DNS manipulada."}], "id": "CVE-2016-5427", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-09-21T14:25:15.580", "references": [{"source": "secalert@redhat.com", "url": "http://www.debian.org/security/2016/dsa-3664"}, {"source": "secalert@redhat.com", "tags": ["Release Notes"], "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/92917"}, {"source": "secalert@redhat.com", "url": "http://www.securitytracker.com/id/1036761"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"}, {"source": "secalert@redhat.com", "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2016/dsa-3664"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "http://www.openwall.com/lists/oss-security/2016/09/09/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/92917"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1036761"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}