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AUSCERT External Security Bulletin Redistribution
Cisco Videoscape Distribution Suite for Internet Streaming
TCP Session Handling Denial of Service Vulnerability
1 March 2016
AusCERT Security Bulletin Summary
Product: Cisco Videoscape Distribution Suite for Internet Streaming
Publisher: Cisco Systems
Operating System: Cisco
VMware ESX Server
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2016-1353
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Cisco Security Advisory
Cisco Videoscape Distribution Suite for Internet Streaming TCP Session
Handling Denial of Service Vulnerability
Advisory ID: cisco-sa-20160226-vds-is
Published: 2016 February 29 00:00 GMT
Version 1.0: Final
Base - 5.0
No workarounds available
Cisco Bug IDs:
A vulnerability in TCP connection handling when TCP sessions are terminated
via a TCP FIN packet for the Cisco Videoscape Distribution Suite for Internet
Streaming (VDS-IS) could allow an unauthenticated, remote attacker to create a
denial of service (DoS) condition.
The vulnerability is due to improper TCP session management when a TCP session
is in TCP FIN waiting state. The device could fail to respond properly to a
new TCP SYN packet to start a new TCP connection. An attacker could exploit
this vulnerability by sending TCP traffic streams that could terminate the
connection with a TCP FIN. An exploit could allow the attacker to cause a
partial DoS condition. When a TCP session is in a TCP FIN waiting state, it is
possible that new incoming TCP SYN packets will be dropped silently.
Cisco has not released software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are not available.
This advisory is available at the following link:
Cisco VDS-IS releases 3.3(0), 3.3(1), 4.0(0), and 4.1(0) are vulnerable.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
Workarounds are not available.
When considering software upgrades, customers are advised to consult the Cisco
Security Advisories and Responses archive at http://www.cisco.com/go/psirt and
review subsequent advisories to determine exposure and a complete upgrade
In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described
in this advisory.
This vulnerability was found during resolution of a TAC customer case.
Version Description Section Status Date
1.0 Initial public release Final 2016-February-29
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end
users of Cisco products.
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