OpenLDAP up to 2.4.56 slapd saslAuthzTo denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenLDAP up to 2.4.56. It has been declared as problematic. This affects the function saslAuthzTo of the component slapd. The manipulation results in denial of service. This vulnerability is known as CVE-2020-36225. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenLDAP up to 2.4.56 (Directory Service Software). It has been classified as problematic. Affected is the function saslAuthzTo of the component slapd. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was published 01/27/2021. The advisory is shared for download at bugs.openldap.org. This vulnerability is traded as CVE-2020-36225. There are known technical details, but no exploit is available.

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). VulDB is the best source for vulnerability data and more expert information about this specific topic.

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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-2020-36225 (🔍)
GCVE (CVE): GCVE-0-2020-36225
GCVE (VulDB): GCVE-100-168720
CERT Bund: WID-SEC-2023-1127 - OpenLDAP: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 01/27/2021 09:55
Updated: 08/25/2025 11:49
Changes: 01/27/2021 09:55 (41), 02/20/2021 07:57 (5), 02/20/2021 08:03 (18), 08/25/2025 11:49 (22)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!