CVE-2011-4079
Summary
| CVE | CVE-2011-4079 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2011-10-27 20:55:01 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
SingleConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:S/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Openldap | Openldap | 1.0 | All | All | All |
| Application | Openldap | Openldap | 1.0.1 | All | All | All |
| Application | Openldap | Openldap | 1.0.2 | All | All | All |
| Application | Openldap | Openldap | 1.0.3 | All | All | All |
| Application | Openldap | Openldap | 1.1 | All | All | All |
| Application | Openldap | Openldap | 1.1.0 | All | All | All |
| Application | Openldap | Openldap | 1.1.1 | All | All | All |
| Application | Openldap | Openldap | 1.1.2 | All | All | All |
| Application | Openldap | Openldap | 1.1.3 | All | All | All |
| Application | Openldap | Openldap | 1.1.4 | All | All | All |
| Application | Openldap | Openldap | 1.2 | All | All | All |
| Application | Openldap | Openldap | 1.2.0 | All | All | All |
| Application | Openldap | Openldap | 1.2.1 | All | All | All |
| Application | Openldap | Openldap | 1.2.10 | All | All | All |
| Application | Openldap | Openldap | 1.2.11 | All | All | All |
| Application | Openldap | Openldap | 1.2.12 | All | All | All |
| Application | Openldap | Openldap | 1.2.13 | All | All | All |
| Application | Openldap | Openldap | 1.2.2 | All | All | All |
| Application | Openldap | Openldap | 1.2.3 | All | All | All |
| Application | Openldap | Openldap | 1.2.4 | All | All | All |
| Application | Openldap | Openldap | 1.2.5 | All | All | All |
| Application | Openldap | Openldap | 1.2.6 | All | All | All |
| Application | Openldap | Openldap | 1.2.7 | All | All | All |
| Application | Openldap | Openldap | 1.2.8 | All | All | All |
| Application | Openldap | Openldap | 1.2.9 | All | All | All |
| Application | Openldap | Openldap | 2.0 | All | All | All |
| Application | Openldap | Openldap | 2.0.0 | All | All | All |
| Application | Openldap | Openldap | 2.0.1 | All | All | All |
| Application | Openldap | Openldap | 2.0.10 | All | All | All |
| Application | Openldap | Openldap | 2.0.11 | All | All | All |
| Application | Openldap | Openldap | 2.0.11_11 | All | All | All |
| Application | Openldap | Openldap | 2.0.11_11s | All | All | All |
| Application | Openldap | Openldap | 2.0.11_9 | All | All | All |
| Application | Openldap | Openldap | 2.0.12 | All | All | All |
| Application | Openldap | Openldap | 2.0.13 | All | All | All |
| Application | Openldap | Openldap | 2.0.14 | All | All | All |
| Application | Openldap | Openldap | 2.0.15 | All | All | All |
| Application | Openldap | Openldap | 2.0.16 | All | All | All |
| Application | Openldap | Openldap | 2.0.17 | All | All | All |
| Application | Openldap | Openldap | 2.0.18 | All | All | All |
| Application | Openldap | Openldap | 2.0.19 | All | All | All |
| Application | Openldap | Openldap | 2.0.2 | All | All | All |
| Application | Openldap | Openldap | 2.0.20 | All | All | All |
| Application | Openldap | Openldap | 2.0.21 | All | All | All |
| Application | Openldap | Openldap | 2.0.22 | All | All | All |
| Application | Openldap | Openldap | 2.0.23 | All | All | All |
| Application | Openldap | Openldap | 2.0.24 | All | All | All |
| Application | Openldap | Openldap | 2.0.25 | All | All | All |
| Application | Openldap | Openldap | 2.0.26 | All | All | All |
| Application | Openldap | Openldap | 2.0.27 | All | All | All |
| Application | Openldap | Openldap | 2.0.3 | All | All | All |
| Application | Openldap | Openldap | 2.0.4 | All | All | All |
| Application | Openldap | Openldap | 2.0.5 | All | All | All |
| Application | Openldap | Openldap | 2.0.6 | All | All | All |
| Application | Openldap | Openldap | 2.0.7 | All | All | All |
| Application | Openldap | Openldap | 2.0.8 | All | All | All |
| Application | Openldap | Openldap | 2.0.9 | All | All | All |
| Application | Openldap | Openldap | 2.1.10 | All | All | All |
| Application | Openldap | Openldap | 2.1.11 | All | All | All |
| Application | Openldap | Openldap | 2.1.12 | All | All | All |
| Application | Openldap | Openldap | 2.1.13 | All | All | All |
| Application | Openldap | Openldap | 2.1.14 | All | All | All |
| Application | Openldap | Openldap | 2.1.15 | All | All | All |
| Application | Openldap | Openldap | 2.1.16 | All | All | All |
| Application | Openldap | Openldap | 2.1.17 | All | All | All |
| Application | Openldap | Openldap | 2.1.18 | All | All | All |
| Application | Openldap | Openldap | 2.1.19 | All | All | All |
| Application | Openldap | Openldap | 2.1.2 | All | All | All |
| Application | Openldap | Openldap | 2.1.20 | All | All | All |
| Application | Openldap | Openldap | 2.1.21 | All | All | All |
| Application | Openldap | Openldap | 2.1.22 | All | All | All |
| Application | Openldap | Openldap | 2.1.23 | All | All | All |
| Application | Openldap | Openldap | 2.1.24 | All | All | All |
| Application | Openldap | Openldap | 2.1.25 | All | All | All |
| Application | Openldap | Openldap | 2.1.26 | All | All | All |
| Application | Openldap | Openldap | 2.1.27 | All | All | All |
| Application | Openldap | Openldap | 2.1.28 | All | All | All |
| Application | Openldap | Openldap | 2.1.29 | All | All | All |
| Application | Openldap | Openldap | 2.1.3 | All | All | All |
| Application | Openldap | Openldap | 2.1.30 | All | All | All |
| Application | Openldap | Openldap | 2.1.4 | All | All | All |
| Application | Openldap | Openldap | 2.1.5 | All | All | All |
| Application | Openldap | Openldap | 2.1.6 | All | All | All |
| Application | Openldap | Openldap | 2.1.7 | All | All | All |
| Application | Openldap | Openldap | 2.1.8 | All | All | All |
| Application | Openldap | Openldap | 2.1.9 | All | All | All |
| Application | Openldap | Openldap | 2.1_.20 | All | All | All |
| Application | Openldap | Openldap | 2.2.0 | All | All | All |
| Application | Openldap | Openldap | 2.2.1 | All | All | All |
| Application | Openldap | Openldap | 2.2.10 | All | All | All |
| Application | Openldap | Openldap | 2.2.11 | All | All | All |
| Application | Openldap | Openldap | 2.2.12 | All | All | All |
| Application | Openldap | Openldap | 2.2.13 | All | All | All |
| Application | Openldap | Openldap | 2.2.14 | All | All | All |
| Application | Openldap | Openldap | 2.2.15 | All | All | All |
| Application | Openldap | Openldap | 2.2.16 | All | All | All |
| Application | Openldap | Openldap | 2.2.17 | All | All | All |
| Application | Openldap | Openldap | 2.2.18 | All | All | All |
| Application | Openldap | Openldap | 2.2.19 | All | All | All |
| Application | Openldap | Openldap | 2.2.20 | All | All | All |
| Application | Openldap | Openldap | 2.2.21 | All | All | All |
| Application | Openldap | Openldap | 2.2.22 | All | All | All |
| Application | Openldap | Openldap | 2.2.23 | All | All | All |
| Application | Openldap | Openldap | 2.2.24 | All | All | All |
| Application | Openldap | Openldap | 2.2.25 | All | All | All |
| Application | Openldap | Openldap | 2.2.26 | All | All | All |
| Application | Openldap | Openldap | 2.2.27 | All | All | All |
| Application | Openldap | Openldap | 2.2.4 | All | All | All |
| Application | Openldap | Openldap | 2.2.5 | All | All | All |
| Application | Openldap | Openldap | 2.2.6 | All | All | All |
| Application | Openldap | Openldap | 2.2.7 | All | All | All |
| Application | Openldap | Openldap | 2.2.8 | All | All | All |
| Application | Openldap | Openldap | 2.2.9 | All | All | All |
| Application | Openldap | Openldap | 2.3.10 | All | All | All |
| Application | Openldap | Openldap | 2.3.11 | All | All | All |
| Application | Openldap | Openldap | 2.3.12 | All | All | All |
| Application | Openldap | Openldap | 2.3.13 | All | All | All |
| Application | Openldap | Openldap | 2.3.14 | All | All | All |
| Application | Openldap | Openldap | 2.3.15 | All | All | All |
| Application | Openldap | Openldap | 2.3.16 | All | All | All |
| Application | Openldap | Openldap | 2.3.17 | All | All | All |
| Application | Openldap | Openldap | 2.3.18 | All | All | All |
| Application | Openldap | Openldap | 2.3.19 | All | All | All |
| Application | Openldap | Openldap | 2.3.20 | All | All | All |
| Application | Openldap | Openldap | 2.3.21 | All | All | All |
| Application | Openldap | Openldap | 2.3.22 | All | All | All |
| Application | Openldap | Openldap | 2.3.23 | All | All | All |
| Application | Openldap | Openldap | 2.3.24 | All | All | All |
| Application | Openldap | Openldap | 2.3.25 | All | All | All |
| Application | Openldap | Openldap | 2.3.26 | All | All | All |
| Application | Openldap | Openldap | 2.3.27 | All | All | All |
| Application | Openldap | Openldap | 2.3.28 | All | All | All |
| Application | Openldap | Openldap | 2.3.29 | All | All | All |
| Application | Openldap | Openldap | 2.3.30 | All | All | All |
| Application | Openldap | Openldap | 2.3.31 | All | All | All |
| Application | Openldap | Openldap | 2.3.32 | All | All | All |
| Application | Openldap | Openldap | 2.3.33 | All | All | All |
| Application | Openldap | Openldap | 2.3.34 | All | All | All |
| Application | Openldap | Openldap | 2.3.35 | All | All | All |
| Application | Openldap | Openldap | 2.3.36 | All | All | All |
| Application | Openldap | Openldap | 2.3.37 | All | All | All |
| Application | Openldap | Openldap | 2.3.38 | All | All | All |
| Application | Openldap | Openldap | 2.3.39 | All | All | All |
| Application | Openldap | Openldap | 2.3.4 | All | All | All |
| Application | Openldap | Openldap | 2.3.40 | All | All | All |
| Application | Openldap | Openldap | 2.3.41 | All | All | All |
| Application | Openldap | Openldap | 2.3.42 | All | All | All |
| Application | Openldap | Openldap | 2.3.43 | All | All | All |
| Application | Openldap | Openldap | 2.3.5 | All | All | All |
| Application | Openldap | Openldap | 2.3.6 | All | All | All |
| Application | Openldap | Openldap | 2.3.7 | All | All | All |
| Application | Openldap | Openldap | 2.3.8 | All | All | All |
| Application | Openldap | Openldap | 2.3.9 | All | All | All |
| Application | Openldap | Openldap | 2.4.10 | All | All | All |
| Application | Openldap | Openldap | 2.4.11 | All | All | All |
| Application | Openldap | Openldap | 2.4.12 | All | All | All |
| Application | Openldap | Openldap | 2.4.13 | All | All | All |
| Application | Openldap | Openldap | 2.4.14 | All | All | All |
| Application | Openldap | Openldap | 2.4.15 | All | All | All |
| Application | Openldap | Openldap | 2.4.16 | All | All | All |
| Application | Openldap | Openldap | 2.4.17 | All | All | All |
| Application | Openldap | Openldap | 2.4.18 | All | All | All |
| Application | Openldap | Openldap | 2.4.19 | All | All | All |
| Application | Openldap | Openldap | 2.4.20 | All | All | All |
| Application | Openldap | Openldap | 2.4.21 | All | All | All |
| Application | Openldap | Openldap | 2.4.22 | All | All | All |
| Application | Openldap | Openldap | 2.4.23 | All | All | All |
| Application | Openldap | Openldap | 2.4.24 | All | All | All |
| Application | Openldap | Openldap | 2.4.25 | All | All | All |
| Application | Openldap | Openldap | 2.4.3 | All | All | All |
| Application | Openldap | Openldap | 2.4.6 | All | All | All |
| Application | Openldap | Openldap | 2.4.7 | All | All | All |
| Application | Openldap | Openldap | 2.4.8 | All | All | All |
| Application | Openldap | Openldap | 2.4.9 | All | All | All |
| Application | Openldap | Openldap | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-security - Re: CVE Request: openldap2 UTF8StringNormalize() can cause a (one-byte) buffer overflow | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| USN-1266-1: OpenLDAP vulnerability | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| OpenLDAP ITS - Software Bugs/7059 | af854a3a-2127-422b-91ae-364da2661108 | www.openldap.org | |
| Projects · Explore · GitLab | af854a3a-2127-422b-91ae-364da2661108 | www.openldap.org | |
| Security Advisory SA46599 - OpenLDAP "UTF8StringNormalize()" Off-by-One Denial of Service Vulnerability - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| OpenLDAP 'UTF8StringNormalize()' Remote Buffer Overflow Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| oss-security - CVE Request: openldap2 UTF8StringNormalize() can cause a (one-byte) buffer overflow | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| 749324 – (CVE-2011-4079) CVE-2011-4079 openldap: one-byte buffer overflow in slapd | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Patch |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| Gentoo Linux Documentation -- OpenLDAP: Multiple vulnerabilities | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| Projects · Explore · GitLab | MITRE | www.openldap.org | |
| OpenLDAP ITS - Software Bugs/7059 | MITRE | www.openldap.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.