Security Bulletin: Flex System Manager (FSM) Denial of Service (CVE-2011-3188)

Summary

Denial of service due to weaknesses in the linux kernel.

Vulnerability Details

Abstract

Denial of service due to weaknesses in the linux kernel.

Content

Vulnerability Details:

CVE ID: CVE-2011-3188
Description:
The FSM embedded linux kernel is susceptible to denial of service attacks related to TCP sequence number generation.

CVSS Base Score: 5.8
CVSS Temporal Score: See <http://xforce.iss.net/xforce/xfdb/69392&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:P)

Affected products and versions

• IBM Flex System Manager Node, Types 7955, 8731, 8734 all models, 1.1.0 – 1.3

Remediation:

Install FSMApplianceUpdate-1-3-1 update package for Flex System Manager Node. The package is available on IBM Fix Central.

Workaround(s) & Mitigation(s):

None

References:

• Complete CVSS Guide
• On-line Calculator V2

Related Information:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement
None

Change History
06 December 2013 : Original Copy Published

• The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Flash.

Note: According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an “industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response.” IBM PROVIDES THE CVSS SCORES “AS IS” WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.