Vulnerability/
REDHAT-BUG-2479767

REDHAT-BUG-2479767

Published May 19, 2026

Updated

BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments.

Affected Software

1 affected component

ISC BIND

Event History

May 19, 2026

Data Sourced

via Red Hat·09:49 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of REDHAT-BUG-2479767?

The severity of REDHAT-BUG-2479767 is classified as high with a severity score of 7.

How do I fix REDHAT-BUG-2479767?

To fix REDHAT-BUG-2479767, it is recommended to update to the latest version of ISC BIND that contains the necessary patches.

What systems are affected by REDHAT-BUG-2479767?

REDHAT-BUG-2479767 affects BIND servers configured for TKEY-based authentication using GSS-API tokens, particularly in Active Directory integrated DNS deployments.

What are the consequences of not addressing REDHAT-BUG-2479767?

Failure to address REDHAT-BUG-2479767 can lead to excessive memory consumption, potentially resulting in Denial of Service for the affected DNS servers.

When was REDHAT-BUG-2479767 published?

REDHAT-BUG-2479767 was published on May 19, 2026.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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