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CVE-2023-2829

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CVE-2023-2829

Published: Jun 21, 2023

Modified: Feb 13, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.

VendorProductVersions

ISC

BIND 9

affected
9.16.8-S1 - <= 9.16.41-S1
affected
9.18.11-S1 - <= 9.18.15-S1

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

CVE-2023-2829
vendor-advisory

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