CVE-2018-16855

An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855	Issue Tracking Third Party Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855	Issue Tracking Third Party Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*

History

21 Nov 2024, 03:53

Type	Values Removed	Values Added
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855 - Issue Tracking, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855 - Issue Tracking, Third Party Advisory
References	~~() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html - Vendor Advisory~~	() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html - Vendor Advisory

Information

Published : 2018-12-03 14:29

Updated : 2024-11-21 03:53

NVD link : CVE-2018-16855

Mitre link : CVE-2018-16855

CVE.ORG link : CVE-2018-16855

JSON object : View

Products Affected

powerdns

recursor

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2018-16855", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-12-03T14:29:00.257", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-125"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash."}, {"lang": "es", "value": "Se ha detectado un problema en PowerDNS Recursor en versiones anteriores a la 4.1.8 en donde un atacante remoto que env\u00ede una consulta DNS puede desencadenar una lectura de memoria fuera de l\u00edmites cuando procesa el hash de la consulta para una b\u00fasqueda de memoria cach\u00e9 de los paquetes, posiblemente conduciendo a a un cierre inesperado."}], "lastModified": "2024-11-21T03:53:27.307", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64CEF467-CBA0-4ADA-B42F-967407FEAA1D", "versionEndExcluding": "4.1.8"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}