ESB-2017.1919 - [Appliance] Cisco Videoscape Distribution Suite Cache Server: Denial of service - Remote/unauthenticated 2017-08-03

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1919
        Cisco Videoscape Distribution Suite Cache Server Denial of
                           Service Vulnerability
                               3 August 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Videoscape Distribution Suite Cache Server
Publisher:         Cisco Systems
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-6745  

Reference:         ESB-2017.1179

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-vds

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Cisco Videoscape Distribution Suite Cache Server Denial of Service
Vulnerability

High

Advisory ID:
cisco-sa-20170802-vds

First Published:
2017 August 2 16:00  GMT

Version 1.0:
Final

Workarounds:
No workarounds available

Cisco Bug IDs:
CSCvc39260
CVSS Score:
Base 8.6, Temporal 8.6
CVE-2017-6745
CWE-119

Summary

    A vulnerability in the cache server within Cisco Videoscape Distribution
    Suite (VDS) for Television could allow an unauthenticated, remote
    attacker to cause a denial of service (DoS) condition on a targeted
    appliance.

    The vulnerability is due to excessive mapped connections exhausting
    the allotted resources within the system. An attacker could exploit
    this vulnerability by sending large amounts of inbound traffic to a
    device with the intention of overloading certain resources. A successful
    exploit could cause the device to reload, resulting in a DoS condition.

    Cisco has released software updates that address this
    vulnerability. There are no workarounds that address this vulnerability.

    This advisory is available at the following link:
    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-vds

Affected Products

    Vulnerable Products
    This vulnerability affects Cisco Videoscape Distribution Suite (VDS)
    for Television.
    Products Confirmed Not Vulnerable
    No other Cisco products are currently known to be affected by this
    vulnerability.

Workarounds

    There are no workarounds that address this vulnerability.

Fixed Software

    Cisco has released free software updates that address the vulnerability
    described in this advisory. Customers may only install and expect support
    for software versions and feature sets for which they have purchased
    a license. By installing, downloading, accessing, or otherwise using
    such software upgrades, customers agree to follow the terms of the
    Cisco software license:
    http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html

    Additionally, customers may only download software for which they
    have a valid license, procured from Cisco directly, or through a
    Cisco authorized reseller or partner. In most cases this will be a
    maintenance upgrade to software that was previously purchased. Free
    security software updates do not entitle customers to a new software
    license, additional software feature sets, or major revision upgrades.

    When considering software upgrades, customers are advised to regularly
    consult the advisories for Cisco products, which are available from
    the Cisco Security Advisories and Alerts page, to determine exposure
    and a complete upgrade solution.

    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.

    Customers Without Service Contracts

    Customers who purchase directly from Cisco but do not hold a Cisco
    service contract and customers who make purchases through third-party
    vendors but are unsuccessful in obtaining fixed software through their
    point of sale should obtain upgrades by contacting the Cisco TAC:
    http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html

    Customers should have the product serial number available and be prepared
    to provide the URL of this advisory as evidence of entitlement to a
    free upgrade.

    Fixed Releases

    This vulnerability was fixed in TV Streamer Application Release 4.6(1).

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.

Source

    This vulnerability was internally reported to the Cisco PSIRT.

URL

    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-vds

Revision History

    Version	Description	Section		Status	Date
    1.0		Initial public release.		--	Final
    2017-August-02

Legal Disclaimer

    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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