Integer Overflow or Wraparound Affecting 389-ds-base-legacy-tools package, versions *


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.54% (41st percentile)

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  • Snyk IDSNYK-CENTOS8-389DSBASELEGACYTOOLS-17326874
  • published12 Jun 2026
  • disclosed4 Jun 2026

Introduced: 4 Jun 2026

NewCVE-2026-11774  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 389-ds-base-legacy-tools.

NVD Description

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

An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), adding sizeof(uint32_t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap buffer overflow of up to approximately 2 megabytes of attacker-controlled data. After a successful SASL bind with integrity protection (SSF > 0), a remote attacker can cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, enrolled host, or service account can trigger this vulnerability over the network. This flaw is independent of CVE-2025-14905, which patched schema.c only and did not modify sasl_io.c.

CVSS Base Scores

version 3.1