CVE-2023-2829

bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · June 21, 2023

Updated · November 22, 2025

Description

A vulnerability was found in BIND. This security flaw occurs when a named instance is configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (synth-from-dnssec) enabled; remote termination can occur using a zone with a malformed NSEC record.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE not specified