{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2020-10995","title":"Title"},{"category":"description","text":"PowerDNS 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.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2020-10995","url":"https://www.suse.com/security/cve/CVE-2020-10995"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1171553 for CVE-2020-10995","url":"https://bugzilla.suse.com/1171553"},{"category":"external","summary":"Advisory link for openSUSE-SU-2020:0698-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/LEZPG4GM5KFH6L7EPATOSNLDHKRJP667/"}],"title":"SUSE CVE CVE-2020-10995","tracking":{"current_release_date":"2025-03-15T10:03:47Z","generator":{"date":"2023-02-15T04:00:04Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2020-10995","initial_release_date":"2023-02-15T04:00:04Z","revision_history":[{"date":"2023-02-15T04:00:04Z","number":"2","summary":"Current version"},{"date":"2025-01-01T05:44:01Z","number":"3","summary":"Current version"},{"date":"2025-02-15T06:21:28Z","number":"4","summary":"Current version"},{"date":"2025-02-17T06:43:10Z","number":"5","summary":"Current version"},{"date":"2025-03-15T10:03:47Z","number":"6","summary":"Current version"}],"status":"interim","version":"6"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Package Hub 12 SP1","product":{"name":"SUSE Package 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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.","title":"CVE description"}],"product_status":{"recommended":["SUSE Package Hub 12 SP1:pdns-recursor-4.1.16-19.1","SUSE Package Hub 15 SP1:pdns-recursor-4.1.12-bp151.4.3.1","openSUSE Leap 15.1:pdns-recursor-4.1.12-lp151.3.3.1","openSUSE Tumbleweed:pdns-recursor-4.5.5-1.3"]},"references":[{"category":"external","summary":"CVE-2020-10995","url":"https://www.suse.com/security/cve/CVE-2020-10995"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1171553 for CVE-2020-10995","url":"https://bugzilla.suse.com/1171553"},{"category":"external","summary":"Advisory link for openSUSE-SU-2020:0698-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/LEZPG4GM5KFH6L7EPATOSNLDHKRJP667/"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Package Hub 12 SP1:pdns-recursor-4.1.16-19.1","SUSE Package Hub 15 SP1:pdns-recursor-4.1.12-bp151.4.3.1","openSUSE Leap 15.1:pdns-recursor-4.1.12-lp151.3.3.1","openSUSE Tumbleweed:pdns-recursor-4.5.5-1.3"]}],"scores":[{"cvss_v3":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"products":["SUSE Package Hub 12 SP1:pdns-recursor-4.1.16-19.1","SUSE Package Hub 15 SP1:pdns-recursor-4.1.12-bp151.4.3.1","openSUSE Leap 15.1:pdns-recursor-4.1.12-lp151.3.3.1","openSUSE Tumbleweed:pdns-recursor-4.5.5-1.3"]}],"threats":[{"category":"impact","date":"2020-05-18T04:57:01Z","details":"moderate"}],"title":"CVE-2020-10995"}]}