Description
In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
Published: 2020-08-21
Score: 7.5 High
EPSS: 4.9% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.6 BIND 9.17.4


Vendor Workaround

No workarounds known.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-29469 In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
Ubuntu USN Ubuntu USN USN-4468-1 Bind vulnerabilities
History

No history.

Subscriptions

Canonical Ubuntu Linux
Isc Bind
Netapp Steelstore Cloud Integrated Storage
Opensuse Leap
Synology Dns Server
cve-icon MITRE

Status: PUBLISHED

Assigner: isc

Published:

Updated: 2024-09-16T16:18:00.777Z

Reserved: 2020-02-05T00:00:00.000Z

Link: CVE-2020-8621

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-08-21T21:15:12.167

Modified: 2024-11-21T05:39:08.490

Link: CVE-2020-8621

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-08-20T00:00:00Z

Links: CVE-2020-8621 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses