CVE-2020-10995

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Summary

CVECVE-2020-10995
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-05-19 17:15:00 UTC
Updated2023-11-07 03:14:00 UTC
DescriptionPowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Application Opensuse Backports Sle 15.0 sp1 All All
Operating System Opensuse Leap 15.1 All All All
Application Powerdns Recursor All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 31 Update: pdns-recursor-4.2.2-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
PowerDNS Security Advisory 2020-01: Denial of Service — PowerDNS Recursor documentation CONFIRM doc.powerdns.com Vendor Advisory
NXNSAttack MISC www.nxnsattack.com Technical Description
[security-announce] openSUSE-SU-2020:0698-1: moderate: Security update f SUSE lists.opensuse.org
[SECURITY] Fedora 32 Update: pdns-recursor-4.3.1-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Debian -- Security Information -- DSA-4691-1 pdns-recursor DEBIAN www.debian.org
[SECURITY] Fedora 32 Update: pdns-recursor-4.3.1-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 31 Update: pdns-recursor-4.2.2-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 501115 Alpine Linux Security Update for pdns-recursor
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