CVE-2017-2591: Fedoraproject 389 Directory Server

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject 389 Directory Server: before 1.3.6 (fixed in 1.3.6)
• Red Hat Enterprise Linux: version 7.0 only

Published 2018-04-30. Last modified 2026-06-17.