{"id":"CVE-2025-58063","state":"PUBLISHED","title":"CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion","description":"CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.","publishedAt":"2025-09-09T19:27:18.124Z","updatedAt":"2025-09-10T14:26:13.850Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["coredns coredns"],"affected":[{"vendor":"coredns","product":"coredns","versions":[{"version":">= 1.2.0, < 1.12.4","status":"affected"}]}],"references":["https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9","https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf"],"weaknesses":["CWE-681"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/58xxx/CVE-2025-58063.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-58063","state":"PUBLISHED","datePublished":"2025-09-09T19:27:18.124Z","dateUpdated":"2025-09-10T14:26:13.850Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-08-22T14:30:32.222Z"},"containers":{"cna":{"title":"CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion","descriptions":[{"lang":"en","value":"CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue."}],"affected":[{"vendor":"coredns","product":"coredns","versions":[{"version":">= 1.2.0, < 1.12.4","status":"affected"}]}],"references":[{"url":"https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9","name":"https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf","name":"https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-681","lang":"en","description":"CWE-681: Incorrect Conversion between Numeric Types","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-09-09T19:27:18.124Z"},"source":{"advisory":"GHSA-93mf-426m-g6x9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-09-10T14:26:10.971285Z","id":"CVE-2025-58063","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-09-10T14:26:13.850Z"}}]}}}