BSA-2017-453

Brocade Security Advisory ID

BSA-2017-453

Initial Publication Date

11/17/2017

Last Updated

12/24/2018

Revision

2.0: Final

Risk Impact

High

Workaround

N/A

Component

EDNS0

Affected CVE

CVE-2017-14495

CVSS Score

7.5

Summary

A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet.

Affected Products

No Brocade Fibre Channel technology products from Broadcom are currently known to be affected by this vulnerability.

Workaround

There are no workarounds that address this vulnerability.

Note

Brocade Manageability products are not vulnerable. However, since the environement that runs the products is not under Brocade's control, Brocade recommends Customers to apply recommendation from the vendors.

Revision History

Version Change Date
1.0 Initial Publication November 17, 2017
2.0 Update for Fibre Channel Only December 24, 2018

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.