Heap-based Buffer Overflow Affecting 389-ds-base package, versions <0:1.4.3.39-23.module+el8.10.0+24085+b368a310


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.47% (65th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Heap-based Buffer Overflow vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-389DSBASE-15628209
  • published15 Mar 2026
  • disclosed23 Feb 2026

Introduced: 23 Feb 2026

CVE-2025-14905  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Centos:8 389-ds-base to version 0:1.4.3.39-23.module+el8.10.0+24085+b368a310 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream 389-ds-base package and not the 389-ds-base package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A flaw was found in the 389-ds-base server. A heap buffer overflow vulnerability exists in the schema_attr_enum_callback function within the schema.c file. This occurs because the code incorrectly calculates the buffer size by summing alias string lengths without accounting for additional formatting characters. When a large number of aliases are processed, this oversight can lead to a heap overflow, potentially allowing a remote attacker to cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE).

CVSS Base Scores

version 3.1