CVE-2020-12243

openldap: denial of service via nested boolean expressions in LDAP search filters

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · April 28, 2020

Updated · October 14, 2026

Description

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

Statement

This issue does not affect Red Hat Enterprise Linux 8 because we don't ship openldap-servers subpackage with the Red Hat Enterprise Linux 8 (it is only present in the buildroot).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-400 · Uncontrolled Resource Consumption