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7.5
CVSSv3

CVE-2021-25218

Published: 18/08/2021 Updated: 07/11/2023
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
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Vulnerability Summary

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.

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Vendor Advisories

Red Hat: CVE-2021-25218
In BIND 91619, 91716 Also, version 91619-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 91619, 91716, and release 91619-S1 of the BIND Suppor ...
Arch Linux Issues:
In BIND before version 91620, if "named" attempts to respond over UDP with a response that is larger than the current effective interface maximum transmission unit (MTU), and if response-rate limiting (RRL) is active, an assertion failure is triggered (resulting in termination of the "named" server process) ...

References

CWE-617https://kb.isc.org/v1/docs/cve-2021-25218http://www.openwall.com/lists/oss-security/2021/08/18/3http://www.openwall.com/lists/oss-security/2021/08/20/2https://security.netapp.com/advisory/ntap-20210909-0002/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/https://nvd.nist.govhttps://access.redhat.com/security/cve/cve-2021-25218https://security.archlinux.org/CVE-2021-25218
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
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