CVE-2020-14323

A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.

• CWE-170
• CWE-476

• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1891685Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
• https://security.gentoo.org/glsa/202012-24Third Party Advisory
• https://security.netapp.com/advisory/ntap-20201103-0001/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14323.htmlVendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1891685Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
• https://security.gentoo.org/glsa/202012-24Third Party Advisory
• https://security.netapp.com/advisory/ntap-20201103-0001/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14323.htmlVendor Advisory

Published

Oct 29, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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