{"schemaVersion":3,"id":"SUSE-SU-2026:1351-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for bind\n\nThis update for bind fixes the following issues:\n\nSecurity issues:\n\n- CVE-2026-1519: maliciously crafted DNSSEC-validated zone can lead to denial of service (bsc#1260805).\n- CVE-2026-3104: memory leak in code preparing DNSSEC proofs of non-existence allows for DoS (bsc#1260567).\n- CVE-2026-3119: authenticated queries containing a TKEY record may cause `named` to terminate unexpectedly\n  (bsc#1260568).\n- CVE-2026-3591: stack use-after-return flaw in SIG(0) handling code allows for ACL bypass (bsc#1260569).\n- use-after-free error in `dns_client_resolve()` triggered by a DNAME response (bsc#1259202).\n\nUpgrade to release 9.20.21\n Security Fixes:\n * Fix unbounded NSEC3 iterations when validating referrals to\n unsigned delegations.\n (CVE-2026-1519)\n [bsc#1260805]\n * Fix memory leaks in code preparing DNSSEC proofs of\n non-existence.\n (CVE-2026-3104)\n [bsc#1260567]\n * Prevent a crash in code processing queries containing a TKEY\n record.\n (CVE-2026-3119)\n [bsc#1260568]\n * Fix a stack use-after-return flaw in SIG(0) handling code.\n (CVE-2026-3591)\n [bsc#1260569]\n * Fix a use-after-free error in dns_client_resolve() triggered by\n a DNAME response. This issue only affected the delv tool and it\n has now been fixed.\n [bsc#1259202]\n Feature Changes:\n * Record query time for all dnstap responses.\n * Optimize TCP source port selection on Linux.\n Bug Fixes:\n * Fix the handling of key statements defined inside views.\n * Fix an assertion failure triggered by non-minimal IXFRs.\n * Fix a crash when retrying a NOTIFY over TCP.\n * Fetch loop detection improvements.\n * Randomize nameserver selection.\n * Fix dnstap logging of forwarded queries.\n * A stale answer could have been served in case of multiple\n upstream failures when following CNAME chains. This has been\n fixed.\n * Fail DNSKEY validation when supported but invalid DS is found.\n * Importing an invalid SKR file might corrupt stack memory.\n * Return FORMERR for queries with the EDNS Client Subnet FAMILY\n field set to 0.\n * Fix inbound IXFR performance regression.\n * Make catalog zone names and member zones' entry names\n case-insensitive.\n * Fix implementation of BRID and HHIT record types.\n * Fix implementation of DSYNC record type.\n * Fix response policy and catalog zones to work with $INCLUDE\n directive.","dates":{"published":"2026-04-15T13:36:44.000Z","modified":"2026-04-16T08:31:25.414Z","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":"suse","product":"bind&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7","name":"bind","label":"bind&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/bind&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7","purlType":"rpm","versions":[{"text":"< 9.20.21-150700.3.18.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.20.21-150700.3.18.1","eol":null,"hubHref":null},{"vendor":"suse","product":"bind&distro=SUSE Linux Enterprise Module for Server Applications 15 SP7","name":"bind","label":"bind&distro=SUSE Linux Enterprise Module for Server Applications 15 SP7","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/bind&distro=SUSE Linux Enterprise Module for Server Applications 15 SP7","purlType":"rpm","versions":[{"text":"< 9.20.21-150700.3.18.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.20.21-150700.3.18.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20261351-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-20261351-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1259202","label":"bugzilla.suse.com/1259202","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260567","label":"bugzilla.suse.com/1260567","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260568","label":"bugzilla.suse.com/1260568","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260569","label":"bugzilla.suse.com/1260569","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260805","label":"bugzilla.suse.com/1260805","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-1519","label":"www.suse.com/security/cve/CVE-2026-1519","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-3104","label":"www.suse.com/security/cve/CVE-2026-3104","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-3119","label":"www.suse.com/security/cve/CVE-2026-3119","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-3591","label":"www.suse.com/security/cve/CVE-2026-3591","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-1519","CVE-2026-3104","CVE-2026-3119","CVE-2026-3591"],"downstream":[],"duplicates":[],"related":["CVE-2026-1519","CVE-2026-3104","CVE-2026-3119","CVE-2026-3591"]},"timeline":[{"kind":"published","date":"2026-04-15T13:36:44.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T08:31:25.414Z","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":"2026-10-22T06:02:15.398Z","stale":false,"partial":false}}