A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation.

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Fixes

Solution

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Workaround

Validate LDIF files for malformed attribute types before importing. Reject any LDIF entry containing attribute types with trailing semicolons (e.g., userCertificate;binary;). Pre-import validation: grep -nE '^[a-zA-Z][a-zA-Z0-9-]*;[^:]*;:' input.ldif && echo "REJECT: trailing semicolon in attribute type". This does not protect against the replication changelog path (corrupted stored data), but that path requires pre-existing database corruption, not external input.

History

Tue, 09 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 09 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation.
Title 389-ds-base: 389-ds-base: heap out-of-bounds read in ldif parser str2entry_state_information_from_type()
First Time appeared Redhat
Redhat directory Server
Redhat enterprise Linux
Weaknesses CWE-125
CPEs cpe:/a:redhat:directory_server:11
cpe:/a:redhat:directory_server:12
cpe:/a:redhat:directory_server:13
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat directory Server
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 1.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-06-09T13:38:21.833Z

Reserved: 2026-06-09T12:54:20.303Z

Link: CVE-2026-11786

cve-icon Vulnrichment

Updated: 2026-06-09T13:38:02.611Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T14:16:36.630

Modified: 2026-06-09T14:42:21.530

Link: CVE-2026-11786

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T15:30:08Z

Weaknesses