ESA-2015-171 EMC NetWorker Denial-of-service Vulnerability

[Security Alert <Security_Alert@xxxxxxx>]

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ESA-2015-171 EMC NetWorker Denial-of-service Vulnerability

EMC Identifier: ESA-2015-171

CVE Identifier: CVE-2015-6849

Severity Rating: CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)

Affected products:  

?       EMC NetWorker version 8.0.4.4 and prior
?       EMC NetWorker version 8.1.3.5 and prior
?       EMC NetWorker version 8.2.1.8 and prior
?       EMC NetWorker version 8.2.2.1 and prior
?       EMC NetWorker version 9.0 prior to build 407



Summary:  
EMC NetWorker contains a resolution for a Denial-of-service vulnerability.  The 
vulnerability when exploited may allow malicious users to disrupt NetWorker 
services on affected systems.

Details:  
EMC NetWorker contains a Denial-of-service vulnerability that is caused by 
incorrect handling of malformed messages.  A malicious user can construct and 
use malformed messages as a part of RPC authentication attempt, which can 
result in Denial-of-service from critical NetWorker processes.

Resolution:  
The following EMC NetWorker releases contain resolution to this vulnerability:
?       EMC NetWorker version 8.0.4.5 or later
?       EMC NetWorker version 8.1.3.6 or later
?       EMC NetWorker version 8.2.2.2 or later
?       EMC NetWorker version 9.0 Build 407 or higher

EMC recommends all customers upgrade NetWorker to one of the above appropriate 
versions at the earliest opportunity.  (i.e. If you are running NW 8.0.x, you 
would upgrade to NW 8.0.4.5, if you are running NW 8.1.x, you would upgrade to 
NW 8.1.3.6). Note: Please ensure you confirm supportability of the NW Client 
version with any NetWorker Modules on the Client by referring to Software 
compatibility guide for your appropriate NW version 
http://compatibilityguide.emc.com:8080/  (NW 8.1.x and higher), or 
https://support.emc.com/docu35302_NetWorker_Software_Compatibility_Guide_.pdf?language=en_US
  (NW version 8.0.x) 


Link to remedies:

Registered EMC Online Support customers can download NetWorker patches and 
software from the EMC Online Support website: 
https://support.emc.com/products/1095_NetWorker



Read and use the information in this EMC Security Advisory to assist in 
avoiding any situation that might arise from the problems described herein. If 
you have any questions regarding this product alert, contact EMC Software 
Technical Support at 1-877-534-2867.

For an explanation of Severity Ratings, refer to EMC Knowledgebase solution 
emc218831. EMC recommends all customers take into account both the base score 
and any relevant temporal and environmental scores which may impact the 
potential severity associated with particular security vulnerability.

EMC recommends that all users determine the applicability of this information 
to their individual situations and take appropriate action. The information set 
forth herein is provided "as is" without warranty of any kind. EMC disclaims 
all warranties, either express or implied, including the warranties of 
merchantability, fitness for a particular purpose, title and non-infringement. 
In no event, shall EMC or its suppliers, be liable for any damages whatsoever 
including direct, indirect, incidental, consequential, loss of business profits 
or special damages, even if EMC or its suppliers have been advised of the 
possibility of such damages. Some states do not allow the exclusion or 
limitation of liability for consequential or incidental damages, so the 
foregoing limitation may not apply.

EMC Product Security Response Center
security_alert@xxxxxxx
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