Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 491
Alerts This Week
Warning Icon 1 491

Fedora 42: Update to dnsdist 1.9.9 critical DoS issue resolution

fedora
Calendar Grey May 15, 2025
Scroller Fedora
Upgrade dnsdist to version 1.9.9 on Fedora 42 resolves the DoS vulnerability CVE-2025-30194 and boosts overall efficiency.
Update to 1.9.9 to fix CVE-2025-30194

Summary

dnsdist is a highly DNS-, DoS- and abuse-aware loadbalancer. Its goal in life

is to route traffic to the best server, delivering top performance to

legitimate users while shunting or blocking abusive traffic.

Update Information:

Update to 1.9.9 to fix CVE-2025-30194

Topics%20covered

Topics Covered

security advisory denial of service update Fedora DoS dnsdist

Change Log

* Tue May 6 2025 Sander Hoentjen - 1.9.9-1 - Update to 1.9.9 - fixes #2362922, #2362923, #2362924 (CVE-2025-30194) * Tue Feb 11 2025 Zbigniew Jędrzejewski-Szmek - 1.9.8-3 - Add sysusers.d config file to allow rpm to create users/groups automatically

References


[ 1 ] Bug #2362878 - dnsdist-1.9.9 is available https://bugzilla.redhat.com/show_bug.cgi?id=2362878 [ 2 ] Bug #2362922 - CVE-2025-30194 dnsdist: Denial of service via crafted DoH exchange [fedora-40] https://bugzilla.redhat.com/show_bug.cgi?id=2362922 [ 3 ] Bug #2362923 - CVE-2025-30194 dnsdist: Denial of service via crafted DoH exchange [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2362923 [ 4 ] Bug #2362924 - CVE-2025-30194 dnsdist: Denial of service via crafted DoH exchange [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2362924

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-8589e5fe8a' 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

Severity
critical
Lowest
Low
Medium
High
Critical

Name: dnsdist
Product: Fedora 42
Version: 1.9.9
Release: 1.fc42
URL: https://www.dnsdist.org/index.html
Summary: Highly DNS-, DoS- and abuse-aware loadbalancer

Topics%20covered

Topics Covered

security advisory denial of service update Fedora DoS dnsdist

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.