CVE-2021-25218

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

Vendor	Product	Versions
ISC	BIND9	Stable Branch 9.16.19; Development Branch 9.17.16; Supported Preview Edition 9.16.19-S1

References

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

Timeline

Published: Aug 18, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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