CVE-2021-3480

A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory server. The highest threat from this vulnerability is to system availability.

• CWE-476

• https://bugzilla.redhat.com/show_bug.cgi?id=1944640Issue Tracking, Patch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GVQCDRQRFHXVR3Z3FQYM3UMC7QZUDDRJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXMOMPTZTGOVFOZUUNXHOVCAYIPST74W/
• https://bugzilla.redhat.com/show_bug.cgi?id=1944640Issue Tracking, Patch, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GVQCDRQRFHXVR3Z3FQYM3UMC7QZUDDRJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXMOMPTZTGOVFOZUUNXHOVCAYIPST74W/

Published

May 20, 2021

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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