Brocade Security Advisory

Brocade Security Advisory ID:

BSA-2017-336

 

Risk Impact:

Low

Initial Publication Date:

June 23, 2017

 

Workaround:

N/A

Last Updated:

September 8, 2017

 

Component:

zlib

Revision:

2.0: Interim

 

Affected CVE:

CVE-2016-9843

 

 

 

CVSS Score:

3.3

Summary

There was a small optimization for PowerPCs to pre-increment a pointer when accessing a word, instead of post-incrementing. This required prefacing the loop with a decrement of the pointer, possibly pointing before the object passed. This is not compliant with the C standard, for which decrementing a pointer before its allocated memory is undefined. When tested on a modern PowerPC with a modern compiler, the optimization no longer has any effect.

Affected Products

Product

Current Assessment

Brocade Virtual Web Application Firewall

Impacted: Upgrade to 4.9-42756.

 

 

Products Confirmed Not Vulnerable

Brocade Fabric OS, Brocade FastIron OS, Brocade NetIron OS, Brocade Network Advisor, Brocade ServerIron ADX, Brocade SLX-OS, and Brocade Virtual ADX 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

June 23, 2017

2.0

Updated to address BNA

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.