OpenLDAP up to 2.4.56 slapd saslAuthzTo denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenLDAP up to 2.4.56. It has been classified as problematic. Affected by this issue is the function saslAuthzTo of the component slapd. The manipulation leads to denial of service. This vulnerability is traded as CVE-2020-36224. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in OpenLDAP up to 2.4.56 (Directory Service Software) and classified as problematic. This issue affects the function saslAuthzTo of the component slapd. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was shared 01/27/2021. It is possible to read the advisory at bugs.openldap.org. The identification of this vulnerability is CVE-2020-36224. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.4.57 eliminates this vulnerability. The upgrade is hosted for download at git.openldap.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.openldap.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2023-1127). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Ubuntu Linux
  • SUSE Linux
  • Open Source OpenLDAP
  • Hitachi Energy RTU500
  • Splunk Splunk Enterprise

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenLDAP 2.4.57
Patch: git.openldap.org

Timelineinfo

01/25/2021 🔍
01/27/2021 +2 days 🔍
01/27/2021 +0 days 🔍
08/25/2025 +1671 days 🔍

Sourcesinfo

Advisory: bugs.openldap.org
Status: Confirmed

CVE: CVE-2020-36224 (🔍)
GCVE (CVE): GCVE-0-2020-36224
GCVE (VulDB): GCVE-100-168719
CERT Bund: WID-SEC-2023-1127 - OpenLDAP: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 01/27/2021 09:54
Updated: 08/25/2025 11:36
Changes: 01/27/2021 09:54 (41), 02/20/2021 07:46 (5), 02/20/2021 07:50 (18), 08/25/2025 11:36 (22)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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