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Fedora 43: libpcap Moderate Memory Corruption Advisory 2025-11961

fedora
Calendar Grey January 7, 2026
Dist Fedora Esm H88
Update to Fedora 43 for libpcap version 1.10.6 addresses memory corruption risks with recommended installation steps.
New version 1.10.6

Summary

Libpcap provides a portable framework for low-level network

monitoring. Libpcap can provide network statistics collection,

security monitoring and network debugging. Since almost every system

vendor provides a different interface for packet capture, the libpcap

authors created this system-independent API to ease in porting and to

alleviate the need for several system-dependent packet capture modules

in each application.

Install libpcap if you need to do low-level network traffic monitoring

on your network.

Update Information:

New version 1.10.6

Topics%20covered

Topics Covered

security advisory fedora network monitoring memory corruption important libpcap

Change Log

* Mon Jan 5 2026 Michal Ruprich - 14:1.10.6-1 - New version 1.10.6

References


[ 1 ] Bug #2426393 - libpcap-1.10.6 is available https://bugzilla.redhat.com/show_bug.cgi?id=2426393 [ 2 ] Bug #2426630 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2426630 [ 3 ] Bug #2426631 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2426631

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-274010c760' 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
important
Lowest
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Critical

Name: libpcap
Product: Fedora 43
Version: 1.10.6
Release: 1.fc43
URL: https://www.tcpdump.org/
Summary: A system-independent interface for user-level packet capture

Topics%20covered

Topics Covered

security advisory fedora network monitoring memory corruption important libpcap

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