Critical Cache Poisoning Advisory for Unbound Update 1.23.1 in Fedora 41
fedora
August 6, 2025
Update to 1.23.1 (rhbz#2380450)
Summary
Unbound is a validating, recursive, and caching DNS(SEC) resolver.
The C implementation of Unbound is developed and maintained by NLnet
Labs. It is based on ideas and algorithms taken from a java prototype
developed by Verisign labs, Nominet, Kirei and ep.net.
Unbound is designed as a set of modular components, so that also
DNSSEC (secure DNS) validation and stub-resolvers (that do not run
as a server, but are linked into an application) are easily possible.
Update Information:
Update to 1.23.1 (rhbz#2380450)
Topics Covered
Change Log
* Mon Jul 21 2025 Tomas Korbar
References
[ 1 ] Bug #2381425 - CVE-2025-5994 unbound: Unbound Cache poisoning [fedora-41]
https://bugzilla.redhat.com/show_bug.cgi?id=2381425
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-e262093d58' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Name: unbound
Product: Fedora 41
Version: 1.23.1
Release: 1.fc41
Summary: Validating, recursive, and caching DNS(SEC) resolver
Topics Covered
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