Denial-of-Service Vulnerability in OpenDJ Directory Service
CVE-2025-27497

8.7HIGH

Key Information:

Vendor

Openidentityplatform

Status
Opendj
Vendor
CVE Published:
5 March 2025

What is CVE-2025-27497?

OpenDJ, an LDAPv3 compliant directory service, is susceptible to a denial-of-service issue that leaves the server unresponsive to incoming LDAP requests. This vulnerability arises when an alias loop is created within the LDAP database. Executing an ldapsearch request with alias dereferencing set to 'always' on the involved alias entry can lead to the server stopping response to all future requests, although a server restart can restore functionality without data loss. The problem has been addressed in version 4.9.3 and users are advised to upgrade to mitigate this risk.

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Deploy the Patch

Affected Version(s)

OpenDJ < 4.9.3

References

https://github.com/OpenIdentityPlatform/OpenDJ/security/a...
x_refsource_CONFIRM
https://github.com/OpenIdentityPlatform/OpenDJ/commit/08a...
x_refsource_MISC

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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