Vulnerability · Published Mar 5, 2025 · Assigned by GitHub_M
CVE-2025-27497OpenDJ Denial of Service (Dos) using alias loop
High 8.7
In plain English
A high-severity infinite loop in OpenDJ from OpenIdentityPlatform. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.openidentityplatform.opendj:opendj-server-legacy | 4.9.3 | GHSA-93qr-h8pr-4593 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenIdentityPlatform | OpenDJ | < 4.9.3 |
Weakness: CWE-835 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N