Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-4079

Severity CVSS v4.0:
Pending analysis
Type:
CWE-189 Numeric Errors
Publication date:
27/10/2011
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:S/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* 2.4.26 (including)
cpe:2.3:a:openldap:openldap:1.0:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:openldap:openldap:1.2.2:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools