{"id":"CVE-2026-117548","aliases":["AZL-112400","DEBIAN-CVE-2026-117548","EUVD-2026-112637","GHSA-7q7x-f5rc-ffjj","UBUNTU-CVE-2026-117548"],"status":"published","title":"389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schema alias name causes denial of service","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00334,"percentile":0.27143,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-10-29T06:22:06Z","modified":"2026-11-05T05:36:30Z","affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.1-12"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.1+dfsg1-1","2.3.1+dfsg1-1+deb12u1","2.3.4+dfsg1-1","2.3.4+dfsg1-1.1","2.4.4+dfsg1-1","2.4.4+dfsg1-3","2.4.5+dfsg1-1","3.0.2+dfsg1-1","3.1.1+dfsg1-1","3.1.1+dfsg1-2","3.1.1+dfsg1-3","3.1.2+dfsg1-1","3.1.2+vendor1-1","3.1.2+vendor1-2","3.3.0-1","3.3.0-2","3.3.1-1","3.3.1-3"]},{"source":"osv","ecosystem":"Debian:13","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.2+dfsg1-1","3.1.2+dfsg1-1+deb13u1","3.1.2+vendor1-1","3.1.2+vendor1-2","3.3.0-1","3.3.0-2","3.3.1-1","3.3.1-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.3.12-1build1","1.3.3.13-1","1.3.4.5-2","1.3.4.8-1","1.3.4.8-3","1.3.4.8-3ubuntu1","1.3.4.8-4","1.3.4.9-1","1.3.4.9-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.7.5-1","1.3.7.5-1build1","1.3.7.5-1build2","1.3.7.9-1","1.3.7.10-1","1.3.7.10-1ubuntu1","1.3.7.10-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.1.6-4","1.4.1.6-4build1","1.4.2.4-1","1.4.2.4-1build1","1.4.3.2-1","1.4.3.2-1build1","1.4.3.6-2","1.4.3.6-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.4.11-2build1","1.4.4.11-2build2","1.4.4.17-1","2.0.11-2","2.0.14-1","2.0.15-1","2.0.15-1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.4+dfsg1-1","2.4.4+dfsg1-1ubuntu1","2.4.4+dfsg1-1ubuntu4","2.4.4+dfsg1-3","2.4.5+dfsg1-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.2+vendor1-2","3.1.2+vendor1-2build1","3.3.1-3"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.2+dfsg1-1","3.1.2+vendor1-2"]}],"products":[{"vendor":"red hat","product":"red hat directory server 11"},{"vendor":"red hat","product":"red hat directory server 12"},{"vendor":"red hat","product":"red hat directory server 13"},{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-117548","tags":["vdb-entry","x_refsource_REDHAT","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2561778","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117548","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7q7x-f5rc-ffjj"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-117548","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-117548","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-117548","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-117548","title":"389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schema alias name causes denial of service","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T06:22:06.328Z","modified":"2026-11-05T16:24:20.544Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T17:53:58.925122Z"}],"euvd":[{"id":"EUVD-2026-112637","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T06:22:06Z","modified":"2026-11-05T16:24:20Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-05T18:00:58.377138Z"}],"ghsa":[{"id":"GHSA-7q7x-f5rc-ffjj","title":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN ...","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T09:31:26Z","modified":"2026-10-29T09:31:35Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:14:37.567324Z"}],"nvd":[{"id":"CVE-2026-117548","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T07:16:44.363Z","modified":"2026-11-05T17:17:44.417Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-05T19:56:10.163144Z"}],"osv":[{"id":"DEBIAN-CVE-2026-117548","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T07:16:44.363Z","modified":"2026-11-04T09:47:24.287641501Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-04T10:05:57.467041Z"},{"id":"UBUNTU-CVE-2026-117548","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T07:16:00Z","modified":"2026-11-05T04:42:49Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-05T13:33:25.727744Z"},{"id":"AZL-112400","title":"CVE-2026-117548 affecting package 389-ds-base 3.1.1-12","description":"A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as \"commonName\") instead of its canonical name (such as \"cn\") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.","status":"published","published":"2026-10-29T07:16:44Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:19.001909Z"}]}}