{"schemaVersion":3,"id":"SUSE-SU-2026:2458-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for dnsmasq\n\nThis update for dnsmasq fixes the following issues\n\n- CVE-2026-2291: VU#471747: dnsmasq can be abused to record false cached data enabling DoS or attacker redirect\n  (bsc#1258251).\n- CVE-2026-4890: DoS vulnerability in the DNSSEC validation (bsc#1265001).\n- CVE-2026-4891: heap-based out-of-bounds read vulnerability in the DNSSEC validation (bsc#1265002).\n- CVE-2026-4892: heap-based out-of-bounds write vulnerability in the DHCPv6 implementation (bsc#1265003).\n- CVE-2026-4893: information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks\n  (bsc#1265004).\n- CVE-2026-5172: buffer overflow in dnsmasq's extract_addresses() function (bsc#1265006).\n- CVE-2026-6507: out-of-bounds write in DHCP BOOTREPLY processing can lead to denial of service (bsc#1262487).\n\nChanges for dnsmasq:\n\n- Update to security release 2.92rel2.\n- Fix setting of compile time options from the spec file.","dates":{"published":"2026-06-18T15:54:25.000Z","modified":"2026-06-19T08:15:07.136Z","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":"dnsmasq&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","name":"dnsmasq","label":"dnsmasq&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/dnsmasq&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","purlType":"rpm","versions":[{"text":"< 2.92rel2-18.27.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.92rel2-18.27.1","eol":null,"hubHref":null},{"vendor":"suse","product":"dnsmasq&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","name":"dnsmasq","label":"dnsmasq&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/dnsmasq&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","purlType":"rpm","versions":[{"text":"< 2.92rel2-18.27.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.92rel2-18.27.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20262458-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-20262458-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1258251","label":"bugzilla.suse.com/1258251","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1262487","label":"bugzilla.suse.com/1262487","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1265001","label":"bugzilla.suse.com/1265001","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1265002","label":"bugzilla.suse.com/1265002","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1265003","label":"bugzilla.suse.com/1265003","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1265004","label":"bugzilla.suse.com/1265004","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1265006","label":"bugzilla.suse.com/1265006","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-2291","label":"www.suse.com/security/cve/CVE-2026-2291","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4890","label":"www.suse.com/security/cve/CVE-2026-4890","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4891","label":"www.suse.com/security/cve/CVE-2026-4891","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4892","label":"www.suse.com/security/cve/CVE-2026-4892","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4893","label":"www.suse.com/security/cve/CVE-2026-4893","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-5172","label":"www.suse.com/security/cve/CVE-2026-5172","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-6507","label":"www.suse.com/security/cve/CVE-2026-6507","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-2291","CVE-2026-4890","CVE-2026-4891","CVE-2026-4892","CVE-2026-4893","CVE-2026-5172","CVE-2026-6507"],"downstream":[],"duplicates":[],"related":["CVE-2026-2291","CVE-2026-4890","CVE-2026-4891","CVE-2026-4892","CVE-2026-4893","CVE-2026-5172","CVE-2026-6507"]},"timeline":[{"kind":"published","date":"2026-06-18T15:54:25.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-19T08:15:07.136Z","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":"2026-10-22T06:01:30.743Z","stale":false,"partial":false}}