CVE-2023-5517: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 38 only; version 39 only
• ISC BIND: from 9.12.0, up to and including 9.16.45; from 9.18.0, up to and including 9.18.21; from 9.19.0, up to and including 9.19.19; version 9.16.8 only; version 9.16.11 only; version 9.16.12 only; …
• Netapp Active Iq Unified Manager: affected versions not specified

Published 2024-02-13. Last modified 2026-06-17.