CVE-2021-25218

HIGH

BIND <9.16.19-9.17.16 - DoS

Title source: llm

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.

References (5)

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2021/08/18/3

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2021/08/20/2

[Exploit, Vendor Advisory] https://kb.isc.org/v1/docs/cve-2021-25218

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20210909-0002/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/

Scores

CVSS v3 7.5

EPSS 0.0058

EPSS Percentile 68.6%

Attack Vector NETWORK

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

Classification

CWE

CWE-617

Status published

Affected Products (4)

isc/bind

isc/bind

isc/bind

fedoraproject/fedora

Timeline

Published Aug 18, 2021

Tracked Since Feb 18, 2026