Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a denial of service (slapd crash) via a zero-length string that triggers a heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry.
CVE-2011-4079 is a security vulnerability that . Impacting 1 product from openldap organizations running these solutions should prioritize assessment and patching.
Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2011-10-27T20:55:01.823
2025-04-11T00:51:21.963
Deferred
CVSSv2: 4.0 (MEDIUM)
AV:N/AC:L/Au:S/C:N/I:N/A:P
8.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | openldap | openldap | ≤ 2.4.26 | Yes |
| Application | openldap | openldap | 1.0 | Yes |
| Application | openldap | openldap | 1.0.1 | Yes |
| Application | openldap | openldap | 1.0.2 | Yes |
| Application | openldap | openldap | 1.0.3 | Yes |
| Application | openldap | openldap | 1.1 | Yes |
| Application | openldap | openldap | 1.1.0 | Yes |
| Application | openldap | openldap | 1.1.1 | Yes |
| Application | openldap | openldap | 1.1.2 | Yes |
| Application | openldap | openldap | 1.1.3 | Yes |
| Application | openldap | openldap | 1.1.4 | Yes |
| Application | openldap | openldap | 1.2 | Yes |
| Application | openldap | openldap | 1.2.0 | Yes |
| Application | openldap | openldap | 1.2.1 | Yes |
| Application | openldap | openldap | 1.2.2 | Yes |
| Application | openldap | openldap | 1.2.3 | Yes |
| Application | openldap | openldap | 1.2.4 | Yes |
| Application | openldap | openldap | 1.2.5 | Yes |
| Application | openldap | openldap | 1.2.6 | Yes |
| Application | openldap | openldap | 1.2.7 | Yes |
| Application | openldap | openldap | 1.2.8 | Yes |
| Application | openldap | openldap | 1.2.9 | Yes |
| Application | openldap | openldap | 1.2.10 | Yes |
| Application | openldap | openldap | 1.2.11 | Yes |
| Application | openldap | openldap | 1.2.12 | Yes |
| Application | openldap | openldap | 1.2.13 | Yes |
| Application | openldap | openldap | 2.0 | Yes |
| Application | openldap | openldap | 2.0.0 | Yes |
| Application | openldap | openldap | 2.0.1 | Yes |
| Application | openldap | openldap | 2.0.2 | Yes |
| Application | openldap | openldap | 2.0.3 | Yes |
| Application | openldap | openldap | 2.0.4 | Yes |
| Application | openldap | openldap | 2.0.5 | Yes |
| Application | openldap | openldap | 2.0.6 | Yes |
| Application | openldap | openldap | 2.0.7 | Yes |
| Application | openldap | openldap | 2.0.8 | Yes |
| Application | openldap | openldap | 2.0.9 | Yes |
| Application | openldap | openldap | 2.0.10 | Yes |
| Application | openldap | openldap | 2.0.11 | Yes |
| Application | openldap | openldap | 2.0.11_9 | Yes |
| Application | openldap | openldap | 2.0.11_11 | Yes |
| Application | openldap | openldap | 2.0.11_11s | Yes |
| Application | openldap | openldap | 2.0.12 | Yes |
| Application | openldap | openldap | 2.0.13 | Yes |
| Application | openldap | openldap | 2.0.14 | Yes |
| Application | openldap | openldap | 2.0.15 | Yes |
| Application | openldap | openldap | 2.0.16 | Yes |
| Application | openldap | openldap | 2.0.17 | Yes |
| Application | openldap | openldap | 2.0.18 | Yes |
| Application | openldap | openldap | 2.0.19 | Yes |
| Application | openldap | openldap | 2.0.20 | Yes |
| Application | openldap | openldap | 2.0.21 | Yes |
| Application | openldap | openldap | 2.0.22 | Yes |
| Application | openldap | openldap | 2.0.23 | Yes |
| Application | openldap | openldap | 2.0.24 | Yes |
| Application | openldap | openldap | 2.0.25 | Yes |
| Application | openldap | openldap | 2.0.26 | Yes |
| Application | openldap | openldap | 2.0.27 | Yes |
| Application | openldap | openldap | 2.1.2 | Yes |
| Application | openldap | openldap | 2.1.3 | Yes |
| Application | openldap | openldap | 2.1.4 | Yes |
| Application | openldap | openldap | 2.1.5 | Yes |
| Application | openldap | openldap | 2.1.6 | Yes |
| Application | openldap | openldap | 2.1.7 | Yes |
| Application | openldap | openldap | 2.1.8 | Yes |
| Application | openldap | openldap | 2.1.9 | Yes |
| Application | openldap | openldap | 2.1.10 | Yes |
| Application | openldap | openldap | 2.1.11 | Yes |
| Application | openldap | openldap | 2.1.12 | Yes |
| Application | openldap | openldap | 2.1.13 | Yes |
| Application | openldap | openldap | 2.1.14 | Yes |
| Application | openldap | openldap | 2.1.15 | Yes |
| Application | openldap | openldap | 2.1.16 | Yes |
| Application | openldap | openldap | 2.1.17 | Yes |
| Application | openldap | openldap | 2.1.18 | Yes |
| Application | openldap | openldap | 2.1.19 | Yes |
| Application | openldap | openldap | 2.1.20 | Yes |
| Application | openldap | openldap | 2.1.21 | Yes |
| Application | openldap | openldap | 2.1.22 | Yes |
| Application | openldap | openldap | 2.1.23 | Yes |
| Application | openldap | openldap | 2.1.24 | Yes |
| Application | openldap | openldap | 2.1.25 | Yes |
| Application | openldap | openldap | 2.1.26 | Yes |
| Application | openldap | openldap | 2.1.27 | Yes |
| Application | openldap | openldap | 2.1.28 | Yes |
| Application | openldap | openldap | 2.1.29 | Yes |
| Application | openldap | openldap | 2.1.30 | Yes |
| Application | openldap | openldap | 2.1_.20 | Yes |
| Application | openldap | openldap | 2.2.0 | Yes |
| Application | openldap | openldap | 2.2.1 | Yes |
| Application | openldap | openldap | 2.2.4 | Yes |
| Application | openldap | openldap | 2.2.5 | Yes |
| Application | openldap | openldap | 2.2.6 | Yes |
| Application | openldap | openldap | 2.2.7 | Yes |
| Application | openldap | openldap | 2.2.8 | Yes |
| Application | openldap | openldap | 2.2.9 | Yes |
| Application | openldap | openldap | 2.2.10 | Yes |
| Application | openldap | openldap | 2.2.11 | Yes |
| Application | openldap | openldap | 2.2.12 | Yes |
| Application | openldap | openldap | 2.2.13 | Yes |
| Application | openldap | openldap | 2.2.14 | Yes |
| Application | openldap | openldap | 2.2.15 | Yes |
| Application | openldap | openldap | 2.2.16 | Yes |
| Application | openldap | openldap | 2.2.17 | Yes |
| Application | openldap | openldap | 2.2.18 | Yes |
| Application | openldap | openldap | 2.2.19 | Yes |
| Application | openldap | openldap | 2.2.20 | Yes |
| Application | openldap | openldap | 2.2.21 | Yes |
| Application | openldap | openldap | 2.2.22 | Yes |
| Application | openldap | openldap | 2.2.23 | Yes |
| Application | openldap | openldap | 2.2.24 | Yes |
| Application | openldap | openldap | 2.2.25 | Yes |
| Application | openldap | openldap | 2.2.26 | Yes |
| Application | openldap | openldap | 2.2.27 | Yes |
| Application | openldap | openldap | 2.3.4 | Yes |
| Application | openldap | openldap | 2.3.5 | Yes |
| Application | openldap | openldap | 2.3.6 | Yes |
| Application | openldap | openldap | 2.3.7 | Yes |
| Application | openldap | openldap | 2.3.8 | Yes |
| Application | openldap | openldap | 2.3.9 | Yes |
| Application | openldap | openldap | 2.3.10 | Yes |
| Application | openldap | openldap | 2.3.11 | Yes |
| Application | openldap | openldap | 2.3.12 | Yes |
| Application | openldap | openldap | 2.3.13 | Yes |
| Application | openldap | openldap | 2.3.14 | Yes |
| Application | openldap | openldap | 2.3.15 | Yes |
| Application | openldap | openldap | 2.3.16 | Yes |
| Application | openldap | openldap | 2.3.17 | Yes |
| Application | openldap | openldap | 2.3.18 | Yes |
| Application | openldap | openldap | 2.3.19 | Yes |
| Application | openldap | openldap | 2.3.20 | Yes |
| Application | openldap | openldap | 2.3.21 | Yes |
| Application | openldap | openldap | 2.3.22 | Yes |
| Application | openldap | openldap | 2.3.23 | Yes |
| Application | openldap | openldap | 2.3.24 | Yes |
| Application | openldap | openldap | 2.3.25 | Yes |
| Application | openldap | openldap | 2.3.26 | Yes |
| Application | openldap | openldap | 2.3.27 | Yes |
| Application | openldap | openldap | 2.3.28 | Yes |
| Application | openldap | openldap | 2.3.29 | Yes |
| Application | openldap | openldap | 2.3.30 | Yes |
| Application | openldap | openldap | 2.3.31 | Yes |
| Application | openldap | openldap | 2.3.32 | Yes |
| Application | openldap | openldap | 2.3.33 | Yes |
| Application | openldap | openldap | 2.3.34 | Yes |
| Application | openldap | openldap | 2.3.35 | Yes |
| Application | openldap | openldap | 2.3.36 | Yes |
| Application | openldap | openldap | 2.3.37 | Yes |
| Application | openldap | openldap | 2.3.38 | Yes |
| Application | openldap | openldap | 2.3.39 | Yes |
| Application | openldap | openldap | 2.3.40 | Yes |
| Application | openldap | openldap | 2.3.41 | Yes |
| Application | openldap | openldap | 2.3.42 | Yes |
| Application | openldap | openldap | 2.3.43 | Yes |
| Application | openldap | openldap | 2.4.3 | Yes |
| Application | openldap | openldap | 2.4.6 | Yes |
| Application | openldap | openldap | 2.4.7 | Yes |
| Application | openldap | openldap | 2.4.8 | Yes |
| Application | openldap | openldap | 2.4.9 | Yes |
| Application | openldap | openldap | 2.4.10 | Yes |
| Application | openldap | openldap | 2.4.11 | Yes |
| Application | openldap | openldap | 2.4.12 | Yes |
| Application | openldap | openldap | 2.4.13 | Yes |
| Application | openldap | openldap | 2.4.14 | Yes |
| Application | openldap | openldap | 2.4.15 | Yes |
| Application | openldap | openldap | 2.4.16 | Yes |
| Application | openldap | openldap | 2.4.17 | Yes |
| Application | openldap | openldap | 2.4.18 | Yes |
| Application | openldap | openldap | 2.4.19 | Yes |
| Application | openldap | openldap | 2.4.20 | Yes |
| Application | openldap | openldap | 2.4.21 | Yes |
| Application | openldap | openldap | 2.4.22 | Yes |
| Application | openldap | openldap | 2.4.23 | Yes |
| Application | openldap | openldap | 2.4.24 | Yes |
| Application | openldap | openldap | 2.4.25 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For openldap's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.