CVE-2020-14383

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

• CWE-391

• https://bugzilla.redhat.com/show_bug.cgi?id=1892636Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
• https://security.gentoo.org/glsa/202012-24Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14383.htmlVendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1892636Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
• https://security.gentoo.org/glsa/202012-24Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14383.htmlVendor Advisory

Published

Dec 2, 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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