{"id":"DEBIAN-CVE-2026-22185","details":"OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a limited denial-of-service condition.","modified":"2026-09-14T17:02:41.034152835Z","published":"2026-01-07T21:16:01.733Z","upstream":["CVE-2026-22185"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-22185"}],"affected":[{"package":{"name":"lmdb","ecosystem":"Debian:12","purl":"pkg:deb/debian/lmdb?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.24-1","0.9.31-1","0.9.35-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}},{"package":{"name":"lmdb","ecosystem":"Debian:13","purl":"pkg:deb/debian/lmdb?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.31-1","0.9.35-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}},{"package":{"name":"lmdb","ecosystem":"Debian:14","purl":"pkg:deb/debian/lmdb?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.31-1","0.9.35-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}},{"package":{"name":"openldap","ecosystem":"Debian:12","purl":"pkg:deb/debian/openldap?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2.12-1","2.5.13+dfsg-5","2.5.13+dfsg-5+loong64","2.5.16+dfsg-1","2.5.16+dfsg-2","2.5.17+dfsg-1","2.5.18+dfsg-1","2.5.18+dfsg-2","2.5.18+dfsg-3","2.5.19+dfsg-1","2.6.10+dfsg-1","2.6.13+dfsg-1","2.6.14+dfsg-1","2.6.14+dfsg-2","2.6.2+dfsg-1~exp1","2.6.2+dfsg-1~exp2","2.6.3+dfsg-1~exp1","2.6.4+dfsg-1~exp1","2.6.5+dfsg-1~exp1","2.6.6+dfsg-1~exp1","2.6.6+dfsg-1~exp2","2.6.7+dfsg-1~exp1","2.6.8+dfsg-1~exp1","2.6.8+dfsg-1~exp2","2.6.8+dfsg-1~exp3","2.6.8+dfsg-1~exp4","2.6.9+dfsg-1","2.6.9+dfsg-1~exp1","2.6.9+dfsg-1~exp2","2.6.9+dfsg-2","2:1.2.12.1-1","2:1.2.12.1-1.0.1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}},{"package":{"name":"openldap","ecosystem":"Debian:13","purl":"pkg:deb/debian/openldap?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2.12-1","2.6.10+dfsg-1","2.6.13+dfsg-1","2.6.14+dfsg-1","2.6.14+dfsg-2","2:1.2.12.1-1","2:1.2.12.1-1.0.1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}},{"package":{"name":"openldap","ecosystem":"Debian:14","purl":"pkg:deb/debian/openldap?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2.12-1","2.6.10+dfsg-1","2.6.13+dfsg-1","2.6.14+dfsg-1","2.6.14+dfsg-2","2:1.2.12.1-1","2:1.2.12.1-1.0.1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22185.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}