Executive Summary

Title openldap security update
Name DSA-4666 First vendor Publication 2020-04-28
Vendor Debian Last vendor Modification 2020-04-28
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


A vulnerability was discovered in OpenLDAP, a free implementation of the Lightweight Directory Access Protocol. LDAP search filters with nested boolean expressions can result in denial of service (slapd daemon crash).

For the oldstable distribution (stretch), this problem has been fixed in version 2.4.44+dfsg-5+deb9u4.

For the stable distribution (buster), this problem has been fixed in version 2.4.47+dfsg-3+deb10u2.

We recommend that you upgrade your openldap packages.

For the detailed security status of openldap please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openldap

Original Source

Url : http://www.debian.org/security/2020/dsa-4666

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

Application 201
Os 3

Alert History

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Date Informations
2020-05-23 13:03:43
  • Multiple Updates
2020-04-28 21:19:11
  • First insertion