CVE Vulnerabilities

CVE-2020-15719

Improper Certificate Validation

Published: Jul 14, 2020 | Modified: May 12, 2022
CVSS 3.x
4.2
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 2.x
4 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
4.2 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Ubuntu

libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party package is asserting RFC6125 support. It considers CN even when there is a non-matching subjectAltName (SAN). This is fixed in, for example, openldap-2.4.46-10.el8 in Red Hat Enterprise Linux.

Weakness

The software does not validate, or incorrectly validates, a certificate.

Affected Software

Name Vendor Start Version End Version
Openldap Openldap * *
Red Hat Enterprise Linux 8 RedHat openldap-0:2.4.46-10.el8 *
Openldap Ubuntu eoan *
Openldap Ubuntu trusty *

Potential Mitigations

References