{"id":"CVE-2025-12818","state":"PUBLISHED","title":"PostgreSQL libpq undersizes allocations, via integer wraparound","description":"Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes.  This results in a segmentation fault for the application using libpq.  Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.","publishedAt":"2025-11-13T13:00:12.911Z","updatedAt":"2025-11-13T13:59:33.436Z","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":"PostgreSQL"},"assigner":"PostgreSQL","products":["n/a PostgreSQL"],"affected":[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","status":"affected","lessThan":"18.1","versionType":"rpm"},{"version":"17","status":"affected","lessThan":"17.7","versionType":"rpm"},{"version":"16","status":"affected","lessThan":"16.11","versionType":"rpm"},{"version":"15","status":"affected","lessThan":"15.15","versionType":"rpm"},{"version":"14","status":"affected","lessThan":"14.20","versionType":"rpm"},{"version":"0","status":"affected","lessThan":"13.23","versionType":"rpm"}]}],"references":["https://www.postgresql.org/support/security/CVE-2025-12818/"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/12xxx/CVE-2025-12818.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-12818","state":"PUBLISHED","datePublished":"2025-11-13T13:00:12.911Z","dateUpdated":"2025-11-13T13:59:33.436Z","assignerShortName":"PostgreSQL","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateReserved":"2025-11-06T17:22:32.130Z"},"containers":{"cna":{"title":"PostgreSQL libpq undersizes allocations, via integer wraparound","descriptions":[{"lang":"en","value":"Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes.  This results in a segmentation fault for the application using libpq.  Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected."}],"affected":[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","status":"affected","lessThan":"18.1","versionType":"rpm"},{"version":"17","status":"affected","lessThan":"17.7","versionType":"rpm"},{"version":"16","status":"affected","lessThan":"16.11","versionType":"rpm"},{"version":"15","status":"affected","lessThan":"15.15","versionType":"rpm"},{"version":"14","status":"affected","lessThan":"14.20","versionType":"rpm"},{"version":"0","status":"affected","lessThan":"13.23","versionType":"rpm"}]}],"references":[{"url":"https://www.postgresql.org/support/security/CVE-2025-12818/"}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","type":"CWE","description":"Integer Overflow or Wraparound"}]}],"providerMetadata":{"shortName":"PostgreSQL","orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateUpdated":"2025-11-13T13:00:12.911Z"},"credits":[{"lang":"en","value":"The PostgreSQL project thanks Aleksey Solovev (Positive Technologies) for reporting this problem."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-13T13:59:26.597610Z","id":"CVE-2025-12818","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":"2025-11-13T13:59:33.436Z"}}]}}}