{"id":"CVE-2025-62408","state":"PUBLISHED","title":"c-ares has a Use After Free vulnerability when connection is cleaned up after error","description":"c-ares is an asynchronous resolver library. Versions 1.32.3 through 1.34.5  terminate a query after maximum attempts when using read_answer() and process_answer(), which can cause a Denial of Service. This issue is fixed in version 1.34.6.","publishedAt":"2025-12-08T22:04:08.565Z","updatedAt":"2025-12-09T16:05:06.098Z","severity":{"score":5.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["c-ares c-ares"],"affected":[{"vendor":"c-ares","product":"c-ares","versions":[{"version":"> 1.32.3, < 1.34.6","status":"affected"}]}],"references":["https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5","https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:09:48.677Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/62xxx/CVE-2025-62408.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-62408","state":"PUBLISHED","datePublished":"2025-12-08T22:04:08.565Z","dateUpdated":"2025-12-09T16:05:06.098Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-10-13T16:26:12.178Z"},"containers":{"cna":{"title":"c-ares has a Use After Free vulnerability when connection is cleaned up after error","descriptions":[{"lang":"en","value":"c-ares is an asynchronous resolver library. Versions 1.32.3 through 1.34.5  terminate a query after maximum attempts when using read_answer() and process_answer(), which can cause a Denial of Service. This issue is fixed in version 1.34.6."}],"affected":[{"vendor":"c-ares","product":"c-ares","versions":[{"version":"> 1.32.3, < 1.34.6","status":"affected"}]}],"references":[{"url":"https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5","name":"https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618","name":"https://github.com/c-ares/c-ares/commit/714bf5675c541bd1e668a8db8e67ce012651e618","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416: Use After Free","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-12-08T22:04:08.565Z"},"source":{"advisory":"GHSA-jq53-42q6-pqr5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-09T14:20:03.531539Z","id":"CVE-2025-62408","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-09T16:05:06.098Z"}}]}}}