{"id":"DEBIAN-CVE-2026-120058","details":"psqlODBC sizes its row cache from the column count of a cursor's first result, but recomputes the column count from each later FETCH reply without checking that it matches. A server not trusted under current SSL settings can answer a later FETCH with more columns and make the driver write tuple records past the end of the heap allocation. A keyset reply with fewer columns than the key fields also underflows the unsigned field count. This is reachable with UseDeclareFetch enabled. Versions before psqlODBC 18.00.0006 are affected.","modified":"2026-11-03T09:00:06.887556384Z","published":"2026-11-02T19:18:02.857Z","upstream":["CVE-2026-120058"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-120058"}],"affected":[{"package":{"name":"psqlodbc","ecosystem":"Debian:12","purl":"pkg:deb/debian/psqlodbc?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:13.02.0000-2","1:15.00.0000-1","1:16.00.0000-1","1:16.00.0005-1","1:17.00.0004-1","1:17.00.0004-2","1:17.00.0005-1","1:17.00.0006-1","1:17.00.0006-2","1:17.00.0007-1","1:17.00.0008-1","1:18.00.0001-1","1:18.00.0002-1","1:18.00.0003-1","1:18.00.0003-2","1:18.00.0004-1","1:18.00.0005-1","1:18.00.0006-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120058.json"}},{"package":{"name":"psqlodbc","ecosystem":"Debian:13","purl":"pkg:deb/debian/psqlodbc?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:17.00.0004-2","1:17.00.0005-1","1:17.00.0006-1","1:17.00.0006-2","1:17.00.0007-1","1:17.00.0008-1","1:18.00.0001-1","1:18.00.0002-1","1:18.00.0003-1","1:18.00.0003-2","1:18.00.0004-1","1:18.00.0005-1","1:18.00.0006-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120058.json"}},{"package":{"name":"psqlodbc","ecosystem":"Debian:14","purl":"pkg:deb/debian/psqlodbc?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:17.00.0004-2","1:17.00.0005-1","1:17.00.0006-1","1:17.00.0006-2","1:17.00.0007-1","1:17.00.0008-1","1:18.00.0001-1","1:18.00.0002-1","1:18.00.0003-1","1:18.00.0003-2","1:18.00.0004-1","1:18.00.0005-1","1:18.00.0006-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120058.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}