Public Date:
742846: CVE-2011-3593 kernel: vlan: fix panic when handling priority tagged frames

The MITRE CVE dictionary describes this issue as:

A certain Red Hat patch to the vlan_hwaccel_do_receive function in net/8021q/vlan_core.c in the Linux kernel 2.6.32 on Red Hat Enterprise Linux (RHEL) 6 allows remote attackers to cause a denial of service (system crash) via priority-tagged VLAN frames.

Find out more about CVE-2011-3593 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG. It affects the Linux kernel as shipped with Red Hat Enterprise Linux 6 due to incorrect backporting of upstream patches. A future kernel update in Red Hat Enterprise Linux 6 may address this issue.

CVSS v2 metrics

Base Score 5.7
Base Metrics AV:A/AC:M/Au:N/C:N/I:N/A:C
Access Vector Adjacent Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (kernel) RHSA-2011:1465 2011-11-22


Red Hat would like to thank Gideon Naim for reporting this issue.
Last Modified

CVE description copyright © 2017, The MITRE Corporation