VULNERABILITY INTELLIGENCE

CVE-2023-5517

CVSS score7.5 HIGH
EPSS probability1.28%
CISA KEVNot currently listed
Published2024-02-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Weakness classification

  • nvd@nist.gov: CWE-617
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-617

Primary references