{"schemaVersion":3,"id":"SUSE-SU-2026:21019-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for glibc\n\nThis update for glibc fixes the following issues:\n\nSecurity fixes:\n\n- CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response (bsc#1260078).\n- CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions (bsc#1260082).\n\nOther fixes:\n\n- nss: Missing checks in __nss_configure_lookup, __nss_database_get (bsc#1258319).","dates":{"published":"2026-04-10T06:44:31.000Z","modified":"2026-04-14T18:27:15.948Z","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":"glibc&distro=SUSE Linux Micro 6.2","name":"glibc","label":"glibc&distro=SUSE Linux Micro 6.2","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/glibc&distro=SUSE Linux Micro 6.2","purlType":"rpm","versions":[{"text":"< 2.40-160000.4.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.40-160000.4.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202621019-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-202621019-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1258319","label":"bugzilla.suse.com/1258319","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260078","label":"bugzilla.suse.com/1260078","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1260082","label":"bugzilla.suse.com/1260082","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4437","label":"www.suse.com/security/cve/CVE-2026-4437","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4438","label":"www.suse.com/security/cve/CVE-2026-4438","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-4437","CVE-2026-4438"],"downstream":[],"duplicates":[],"related":["CVE-2026-4437","CVE-2026-4438"]},"timeline":[{"kind":"published","date":"2026-04-10T06:44:31.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-14T18:27:15.948Z","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":"2026-10-21T23:37:39.112Z","stale":false,"partial":false}}