CVE-2023-2828

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Jun 21, 2023
Updated: Jul 21, 2023
CWE ID 770

Summary

CVE-2023-2828 is a vulnerability affecting various versions of BIND 9's `named` instance. The issue lies in the cache-cleaning algorithm, which can be bypassed by querying the recursive resolver for specific RRsets in a particular order. As a result, the size of the cache database can exceed the configured `max-cache-size` limit significantly. The vulnerability affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1. Unchecked cache growth can lead to memory exhaustion and potential denial-of-service attacks. It is recommended to upgrade affected systems as soon as possible to mitigate this risk.

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Affected Products

  • ISC BIND
  • BIND
  • Debian
  • Fedora Operating System

Affected Vendors

  • Internet Systems Consortium
  • Debian
  • Fedora Project
  • Internet Storm Center
  • NetApp

Advisories, Assessments, and Mitigations

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