Fedora 43 users are notified of an update for the libpcap package, which provides a system-independent interface for user-level packet capture. The new version is 1.10.6 and includes fixes for a memory corruption vulnerability via malformed MAC-48 address input. Users can install this update using the "dnf" command at the terminal with su -c 'dnf upgrade --advisory FEDORA-2026-274010c760'.

Fedora 43 Update: libpcap-1.10.6-1.fc43

[SECURITY] Fedora 43 Update: libpcap-1.10.6-1.fc43

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2026-274010c760
2026-01-07 00:49:01.527406+00:00
--------------------------------------------------------------------------------

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
Description :
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
--------------------------------------------------------------------------------
ChangeLog:

* Mon Jan 5 2026 Michal Ruprich [mruprich@redhat.com] - 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
--------------------------------------------------------------------------------

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

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------

--