CVE-2019-6469 - CVE House
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Status published Medium CVE-2019-6469

BIND Supported Preview Edition can exit with an assertion failure if ECS is in use

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • ISC would like to thank Quad9 for reporting this issue.

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Affected Vendor

Affected Software

BIND 9 Supported Preview Edition
Vulnerable Versions:
BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.

Timeline

Official Publish: October 9th, 2019
Last Modified: September 17th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.