CVE-2026-120067

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "psqlODBC", "programFiles": ["qresult.c"], "programRoutines": [{"name": "QR_read_tuples_from_pgres"}], "repo": "https://github.com/postgresql-interfaces/psqlodbc", "vendor": "PostgreSQL", "versions": [{"lessThan": "18.00.0006", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "For updatable cursors, which are enabled by default, psqlODBC adds hidden ctid and, for tables with OIDs, oid columns to the query. It copies each value into a 32-byte stack buffer using the length the server sent, without checking it against the buffer size, so a value of 32 bytes or more writes past the buffer. A server not trusted under current SSL settings can send such a value. So can any database user who can create a view with its own column named ctid that the application reads with an updatable cursor. Builds with _FORTIFY_SOURCE abort; other builds overwrite adjacent stack memory. Versions before psqlODBC 18.00.0006 are affected."}], "id": "CVE-2026-120067", "lastModified": "2026-11-02T20:17:40.043", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-120067", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-02T19:32:53.485832Z", "version": "2.0.3"}}]}, "published": "2026-11-02T19:18:04.120", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "url": "https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}, {"lang": "en", "value": "CWE-787"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{"bugzilla": {"description": "postgresql-odbc: postgresql-odbc: Denial of Service via stack-based buffer overflow in updatable cursors", "id": "2565357", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2565357"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in postgresql-odbc. When processing updatable database queries, the driver copies internal row metadata into a fixed-size memory buffer without verifying the data length sent by the server. A malicious database server or an untrusted user capable of creating custom database views can supply oversized values to trigger a stack-based buffer overflow. This can cause the client application to crash abruptly, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-120067", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "postgresql-odbc", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "postgresql-odbc", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "postgresql-odbc", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "postgresql-odbc", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "postgresql-odbc", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-11-02T19:09:15Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-120067\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-120067\nhttps://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,18.00.0006)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "psqlODBC", "source": "cna", "vendor": "PostgreSQL"}, "product": "psqlodbc", "vendor": "postgresql"}], "created": "2026-11-02T20:45:07.012123+00:00", "updated": "2026-11-02T22:00:06.921975+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$psqlodbc"]}