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AUSCERT External Security Bulletin Redistribution
ESB-2015.3035
ESA-2015-171 EMC NetWorker Denial-of-service Vulnerability
7 December 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: EMC NetWorker
Publisher: EMC
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Virtualisation
Impact/Access: Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-6849
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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@emc.com
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