CVE-2021-25218

In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.

• CWE-617

• http://www.openwall.com/lists/oss-security/2021/08/18/3Mailing List, Patch, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/08/20/2Mailing List, Patch, Third Party Advisory
• https://kb.isc.org/v1/docs/cve-2021-25218Exploit, Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/
• https://security.netapp.com/advisory/ntap-20210909-0002/Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/08/18/3Mailing List, Patch, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/08/20/2Mailing List, Patch, Third Party Advisory
• https://kb.isc.org/v1/docs/cve-2021-25218Exploit, Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/
• https://security.netapp.com/advisory/ntap-20210909-0002/Third Party Advisory

Published

Aug 18, 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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