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Fedora 42: direwolf Critical DoS Issues FEDORA-2025-614bda8830

fedora
Calendar Grey January 2, 2026
Dist Fedora Esm H88
Learn about the direwolf security update in Fedora 42 addressing critical DoS threats.
https://github.com/wb2osz/direwolf/releases/tag/1.8.1

Summary

Dire Wolf is a modern software replacement for the old 1980's style

TNC built with special hardware. Without any additional software, it

can perform as an APRS GPS Tracker, Digipeater, Internet Gateway

(IGate), APRStt gateway. It can also be used as a virtual TNC for

other applications such as APRSIS32, UI-View32, Xastir, APRS-TW, YAAC,

UISS, Linux AX25, SARTrack, Winlink Express, BPQ32, Outpost PM, and many

others.

Update Information:

https://github.com/wb2osz/direwolf/releases/tag/1.8.1

Topics%20covered

Topics Covered

security advisory fedora buffer overflow DoS Reachable Assertion direwolf

Change Log

* Wed Dec 24 2025 Richard Shaw - 1.8.1-1 - Update to 1.8.1. - Build with libgpiod. * Wed Jul 23 2025 Fedora Release Engineering - 1.7-12 - Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild * Tue May 27 2025 Remi Collet - 1.7-11 - rebuild for new gpsd * Tue Apr 8 2025 Davide Cavalca - 1.7-10 - Use the journal for stdout/stderr - Move audio levels example to README.fedora - Backport upstream PR to use system libraries * Tue Feb 11 2025 Zbigniew J\u0119drzejewski-Szmek - 1.7-9 - Add sysusers.d config file to allow rpm to create users/groups automatically * Thu Feb 6 2025 Richard Shaw - 1.7-8 - Rebuild for hamlib 4.6.

References


[ 1 ] Bug #2401397 - direwolf-1.8.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2401397 [ 2 ] Bug #2424537 - CVE-2025-34458 direwolf: wb2osz/direwolf <= 1.8 Reachable Assertion DoS [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2424537 [ 3 ] Bug #2424538 - CVE-2025-34458 direwolf: wb2osz/direwolf <= 1.8 Reachable Assertion DoS [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2424538 [ 4 ] Bug #2424539 - CVE-2025-34457 direwolf: wb2osz/direwolf <= 1.8 Stack-based Buffer Overflow DoS [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2424539 [ 5 ] Bug #2424540 - CVE-2025-34457 direwolf: wb2osz/direwolf <= 1.8 Stack-based Buffer Overflow DoS [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2424540

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-614bda8830' 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
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Critical

Name: direwolf
Product: Fedora 42
Version: 1.8.1
Release: 1.fc42
URL: https://github.com/wb2osz/direwolf/
Summary: Sound Card-based AX.25 TNC

Topics%20covered

Topics Covered

security advisory fedora buffer overflow DoS Reachable Assertion direwolf

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