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ID

VAR-202010-0408


CVE

CVE-2020-17482


TITLE

PowerDNS Authoritative Server information disclosure vulnerability

Trust: 1.2

sources: CNVD: CNVD-2020-57064 // CNNVD: CNNVD-202009-1634

DESCRIPTION

An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory. PowerDNS Authoritative Server Contains an information disclosure vulnerability.Information may be obtained. PowerDNS Authoritative Server is a DNS server of Dutch PowerDNS company. Background ========== The PowerDNS nameserver is an authoritative-only nameserver which uses a flexible backend architecture. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/pdns < 4.3.1 >= 4.3.1 Description =========== It was discovered that PowerDNS did not properly handle certain unknown records. Crafted records cannot be inserted via AXFR. Workaround ========== Do not take zone data from untrusted users. Resolution ========== All PowerDNS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-4.3.1" References ========== [ 1 ] CVE-2020-17482 https://nvd.nist.gov/vuln/detail/CVE-2020-17482 [ 2 ] PowerDNS Security Advisory 2020-05 https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202012-18 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5

Trust: 2.25

sources: NVD: CVE-2020-17482 // JVNDB: JVNDB-2020-012088 // CNVD: CNVD-2020-57064 // PACKETSTORM: 160711

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-57064

AFFECTED PRODUCTS

vendor:powerdnsmodel:authoritativescope:ltversion:4.3.1

Trust: 1.0

vendor:powerdnsmodel:authoritative serverscope:eqversion: -

Trust: 0.8

vendor:powerdnsmodel:authoritative serverscope:ltversion:4.3.1 less than

Trust: 0.8

vendor:powerdnsmodel:authoritative serverscope:ltversion:4.3.1

Trust: 0.6

sources: CNVD: CNVD-2020-57064 // JVNDB: JVNDB-2020-012088 // NVD: CVE-2020-17482

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-17482
value: MEDIUM

Trust: 1.0

NVD: CVE-2020-17482
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2020-57064
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202009-1634
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2020-17482
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2020-57064
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:L/AU:S/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2020-17482
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 2.8
impactScore: 1.4
version: 3.1

Trust: 1.0

NVD: CVE-2020-17482
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2020-57064 // JVNDB: JVNDB-2020-012088 // CNNVD: CNNVD-202009-1634 // NVD: CVE-2020-17482

PROBLEMTYPE DATA

problemtype:CWE-908

Trust: 1.0

problemtype:information leak (CWE-200) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2020-012088 // NVD: CVE-2020-17482

THREAT TYPE

remote

Trust: 0.7

sources: PACKETSTORM: 160711 // CNNVD: CNNVD-202009-1634

TYPE

information disclosure

Trust: 0.6

sources: CNNVD: CNNVD-202009-1634

PATCH

title:Leaking uninitialised memory through crafted zone recordsurl:https://github.com/PowerDNS/pdns

Trust: 0.8

title:Patch for PowerDNS Authoritative Server information disclosure vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/236497

Trust: 0.6

title:PowerDNS Authoritative Server Repair measures for information disclosure vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=131086

Trust: 0.6

sources: CNVD: CNVD-2020-57064 // JVNDB: JVNDB-2020-012088 // CNNVD: CNNVD-202009-1634

EXTERNAL IDS

db:NVDid:CVE-2020-17482

Trust: 3.1

db:JVNDBid:JVNDB-2020-012088

Trust: 0.8

db:PACKETSTORMid:160711

Trust: 0.7

db:CNVDid:CNVD-2020-57064

Trust: 0.6

db:NSFOCUSid:50576

Trust: 0.6

db:CNNVDid:CNNVD-202009-1634

Trust: 0.6

sources: CNVD: CNVD-2020-57064 // JVNDB: JVNDB-2020-012088 // PACKETSTORM: 160711 // CNNVD: CNNVD-202009-1634 // NVD: CVE-2020-17482

REFERENCES

url:https://nvd.nist.gov/vuln/detail/cve-2020-17482

Trust: 2.1

url:https://security.gentoo.org/glsa/202012-18

Trust: 1.7

url:https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html

Trust: 1.6

url:https://github.com/powerdns/pdns

Trust: 1.6

url:https://vigilance.fr/vulnerability/powerdns-information-disclosure-via-zone-records-33428

Trust: 0.6

url:http://www.nsfocus.net/vulndb/50576

Trust: 0.6

url:https://packetstormsecurity.com/files/160711/gentoo-linux-security-advisory-202012-18.html

Trust: 0.6

url:https://creativecommons.org/licenses/by-sa/2.5

Trust: 0.1

url:https://security.gentoo.org/

Trust: 0.1

url:https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html

Trust: 0.1

url:https://bugs.gentoo.org.

Trust: 0.1

sources: CNVD: CNVD-2020-57064 // JVNDB: JVNDB-2020-012088 // PACKETSTORM: 160711 // CNNVD: CNNVD-202009-1634 // NVD: CVE-2020-17482

CREDITS

Gentoo

Trust: 0.7

sources: PACKETSTORM: 160711 // CNNVD: CNNVD-202009-1634

SOURCES

db:CNVDid:CNVD-2020-57064
db:JVNDBid:JVNDB-2020-012088
db:PACKETSTORMid:160711
db:CNNVDid:CNNVD-202009-1634
db:NVDid:CVE-2020-17482

LAST UPDATE DATE

2024-11-23T22:29:27.861000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2020-57064date:2020-10-16T00:00:00
db:JVNDBid:JVNDB-2020-012088date:2021-04-23T08:59:00
db:CNNVDid:CNNVD-202009-1634date:2022-01-04T00:00:00
db:NVDid:CVE-2020-17482date:2024-11-21T05:08:12.210

SOURCES RELEASE DATE

db:CNVDid:CNVD-2020-57064date:2020-10-15T00:00:00
db:JVNDBid:JVNDB-2020-012088date:2021-04-23T00:00:00
db:PACKETSTORMid:160711date:2020-12-24T17:18:18
db:CNNVDid:CNNVD-202009-1634date:2020-09-28T00:00:00
db:NVDid:CVE-2020-17482date:2020-10-02T09:15:13.570