EUVD-2026-35858

lldpd is an implementation of IEEE 802.1ab LLDP. Prior to version 1.0.22, lldpddecode in src/daemon/lldpd.c strips 802.1Q VLAN tags from received Ethernet frames by calling memmove to shift the frame payload 4 bytes left. The third argument byte count is s - 2 ETHERADDRLEN but should be s - 2...

L2 network security controls can be bypassed using VLAN 0 stacking and/or 802.3 headers

Overview Layer-2 L2 network security controls provided by various devices, such as switches, routers, and operating systems, can be bypassed by stacking Ethernet protocol headers. An attacker can send crafted packets through vulnerable devices to cause Denial-of-service DoS or to perform a...

[SECURITY] Fedora 35 Update: golang-github-mdlayher-ethernet-0-0.5.20201109git0394541.fc35

The Golang package ethernet implements marshaling and unmarshaling of IEEE 802.3 Ethernet II frames and IEEE 802.1Q VLAN tags...

How to Configure NetScaler in a HA Setup to Communicate in Two-Arm Config with Different VLAN Tags

This article describes how to configure the appliances in a high availability setup to communicate in a two-arm configuration with different 802.1q VLAN tags on each arm. In some network topologies, administrators enforce a security policy where VLAN traffic through their switching equipment must...

Important: Red Hat Security Advisory: kernel security and bug fix update

Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6.6 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give...

kernel security and bug fix update

kernel 2.6.18-371.3.1 - net be2net: don't use GRO for packets w/ re-inserted VLAN tags Ivan Vecera 1023348 1008691 - net tg3: call pcienablewake to set power state John Feeney 1014973 996331 - misc backport fixes for percpu-rw-semaphore Mikulas Patocka 1014715 867997 - xen information leak via I/...

Wireshark 1.5.1 Development Release !

Wireshark 1.5.1 Development Release ! Wireshark 1.5.1 has been released. Installers for Windows, OS X, and source code are now available. New and Updated Features The following features are new or have been significantly updated since version 1.4: 1. Wireshark can import text dumps, similar to...