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Vulnerability record · CVE-2017-2591 · published 30 April 2018

CVE-2017-2591: Fedoraproject 389 directory server heap-based buffer overflow vulnerability

Fedoraproject · 389 Directory Server

389-ds-base before version 1.3.6 is vulnerable to an improperly NULL terminated array in the uniqueness_entry_to_config() function in the "attribute uniqueness" plugin of 389 Directory Server. An authenticated, or possibly unauthenticated, attacker could use this flaw to force an out-of-bound heap memory read, possibly triggering a crash of the LDAP service.

7.5 CVSS 3.0 High EPSS 2.8% · top 13.9% CWE-122 · Heap-based buffer overflowCWE-125 · Out-of-bounds read
7.5CVSS 3.0 base score, v2 5.0
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

389-ds-base before version 1.3.6 is vulnerable to an improperly NULL terminated array in the uniqueness_entry_to_config() function in the "attribute uniqueness" plugin of 389 Directory Server. An authenticated, or possibly unauthenticated, attacker could use this flaw to force an out-of-bound heap memory read, possibly triggering a crash of the LDAP service.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/95670 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2591 Issue TrackingThird Party Advisory
https://pagure.io/389-ds-base/issue/48986 PatchThird Party Advisory
http://www.securityfocus.com/bid/95670 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2591 Issue TrackingThird Party Advisory
https://pagure.io/389-ds-base/issue/48986 PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-2591), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.