Description
An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.
Published: 2019-10-09
Score: 7.5 High
EPSS: 1.1% 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 Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. >= BIND 9.11.7-S1


Vendor Workaround

Only servers which have enabled the EDNS Client Subnet (ECS) feature can be affected by this defect; it can be prevented by disabling ECS options in the server's configuration.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2019-16029 An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: isc

Published:

Updated: 2024-09-17T01:30:59.645Z

Reserved: 2019-01-16T00:00:00.000Z

Link: CVE-2019-6469

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-10-09T16:15:17.077

Modified: 2024-11-21T04:46:30.590

Link: CVE-2019-6469

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-05-30T00:00:00Z

Links: CVE-2019-6469 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses