CVE-2017-2591

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-04-30 · updated 2026-06-17
Weakness: CWE-122

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.

Affected products

Red Hat, Inc. 389-ds-base: before 1.3.6 — fixed in 1.3.6
Red Hat Enterprise Linux: 7.0

How to fix

Upgrade to a fixed version: Red Hat, Inc. 389-ds-base 1.3.6. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/95670
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2591
https://pagure.io/389-ds-base/issue/48986
http://www.securityfocus.com/bid/95670
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2591
https://pagure.io/389-ds-base/issue/48986

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