CVE-2020-15719 Information

Description

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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00059.html https://access.redhat.com/errata/RHBA-2019:3674 https://bugs.openldap.org/show_bug.cgi?id=9266 https://bugzilla.redhat.com/show_bug.cgi?id=1740070

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

4.2