CVE-2021-25218

HIGH

BIND 9.16.19 9.17.16 and 9.16.19-S1 - Reachable Assertion

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)

Core 5

Core References

Exploit, Vendor Advisory x_refsource_confirm

https://kb.isc.org/v1/docs/cve-2021-25218

Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2021/08/18/3

Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2021/08/20/2

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20210909-0002/

Scores

CVSS v3 7.5

EPSS 0.0058

EPSS Percentile 69.2%

Attack Vector NETWORK

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

Details

CWE

CWE-617

Status published

Products (3)

fedoraproject/fedora 34

isc/bind 9.16.19

isc/bind 9.17.16 (2 CPE variants)

Published Aug 18, 2021

Tracked Since Feb 18, 2026