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Fedora 42: FEDORA-2025-d2d34aad4c critical: dnsdist DoS issue

fedora
Calendar Grey May 30, 2025
Dist Fedora Esm H88
Resolves a security vulnerability in dnsdist affecting Fedora 42 through an upgrade to version 1.9.10.
Updated to 1.9.10, this fixes CVE-2025-30193: Denial of service via crafted TCP exchange

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:

Updated to 1.9.10, this fixes CVE-2025-30193: Denial of service via crafted TCP exchange

Topics%20covered

Topics Covered

security advisory fedora update dos attack service issue dnsdist

Change Log

* Wed May 21 2025 Sander Hoentjen - 1.9.10-1 - Update to 1.9.10 - fixes #2367441 - fixes #2367560, #2367561, #2367562, #2367460 (CVE-2025-30193)

References


[ 1 ] Bug #2367441 - dnsdist-1.9.10 is available https://bugzilla.redhat.com/show_bug.cgi?id=2367441 [ 2 ] Bug #2367560 - CVE-2025-30193 dnsdist: Denial of service via crafted TCP exchange [epel-9] https://bugzilla.redhat.com/show_bug.cgi?id=2367560 [ 3 ] Bug #2367561 - CVE-2025-30193 dnsdist: Denial of service via crafted TCP exchange [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2367561 [ 4 ] Bug #2367562 - CVE-2025-30193 dnsdist: Denial of service via crafted TCP exchange [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2367562

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-d2d34aad4c' 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
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Critical

Name: dnsdist
Product: Fedora 42
Version: 1.9.10
Release: 1.fc42
URL: https://www.dnsdist.org/index.html
Summary: Highly DNS-, DoS- and abuse-aware loadbalancer

Topics%20covered

Topics Covered

security advisory fedora update dos attack service issue dnsdist

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