{"schemaVersion":3,"id":"MGASA-2020-0223","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated pdns-recursor packages fix security vulnerabilities\n\nUpdated pdns-recursor packages fix security vulnerabilities:\n\nAn issue in the DNS protocol has been found that allow malicious parties\nto use recursive DNS services to attack third party authoritative name\nservers. The attack uses a crafted reply by an authoritative name server\nto amplify the resulting traffic between the recursive and other\nauthoritative name servers. Both types of service can suffer degraded\nperformance as an effect (CVE-2020-10995).\n\nAn issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where\nrecords in the answer section of a NXDOMAIN response lacking an SOA were\nnot properly validated in SyncRes::processAnswer. This would allow an\nattacker in position of man-in-the-middle to send a NXDOMAIN answer for\na name that does exist, bypassing DNSSEC validation (CVE-2020-12244).","dates":{"published":"2020-05-24T18:04:47.000Z","modified":"2026-04-16T04:44:48.011Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"pdns-recursor","name":"pdns-recursor","label":"pdns-recursor","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/pdns-recursor","purlType":"rpm","versions":[{"text":"< 4.1.16-1.mga7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.1.16-1.mga7","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2020-0223.html","label":"advisories.mageia.org/MGASA-2020-0223.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=26645","label":"bugs.mageia.org/show_bug.cgi?id=26645","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-01.html","label":"docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-01.html","hostname":"docs.powerdns.com","tags":["Advisory"]},{"url":"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html","label":"docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html","hostname":"docs.powerdns.com","tags":["Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2020/05/19/3","label":"www.openwall.com/lists/oss-security/2020/05/19/3","hostname":"www.openwall.com","tags":["WEB"]},{"url":"https://doc.powerdns.com/recursor/changelog/4.1.html#change-4.1.16","label":"doc.powerdns.com/recursor/changelog/4.1.html","hostname":"doc.powerdns.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-10995","CVE-2020-12244"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-05-24T18:04:47.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:44:48.011Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T04:46:18.825Z","stale":false,"partial":false}}