Brocade Security Advisory

Brocade Security Advisory ID:

BSA-2017-234

 

Risk Impact:

High

Initial Publication Date:

March 31, 2017

 

Workaround:

N/A

Last Updated:

September 8, 2017

 

Component:

Linux Kernel

Revision:

2.0: Interim

 

CVSS Score:

7.0

 

Affected CVE(s):

CVE-2016-8655

 

 

 

 

 

 

 

Summary

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

Affected Products

Product

Current Assessment

Brocade 5400 vRouter

Impacted: Fixed in 6.7R13.

Brocade 5600 vRouter

Impacted: Fixed in 17.2.0 and 5.2R4.

Brocade Virtual Traffic Manager

Impacted: Appliance fixed in 17.1 and later.

Products Confirmed Not Vulnerable

Brocade Fabric OS, Brocade FastIron OS, Brocade NetIron OS, Brocade Network Advisor, Brocade Network OS, Brocade SDN Controller, Brocade ServerIron ADX, Brocade SLX-OS, Brocade Virtual ADX, Brocade Virtual Traffic Manager: Software, and Brocade Virtual Web Application Firewall are confirmed not affected by this vulnerability.

Workaround

There are no workarounds that address this vulnerability.

Revision History

Version

Change

Date

1.0

Initial Publication

March 31, 2017

2.0

Updated to address FOS and NOS

September 8, 2017

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.