high
8.6
CWE
119 20 399
Advisory Published
Updated

CVE-2017-3790: Buffer Overflow

First published: Wed Feb 01 2017(Updated: )

A vulnerability in the received packet parser of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote attacker to cause a reload of the affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient size validation of user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in Real-Time Transport Protocol (RTP) packets in an H.323 call. An exploit could allow the attacker to overflow a buffer in a cache that belongs to the received packet parser, which will result in a crash of the application, resulting in a DoS condition. All versions of Cisco Expressway Series Software and Cisco TelePresence VCS Software prior to version X8.8.2 are vulnerable. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCus99263.

Credit: ykramarz@cisco.com psirt@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco TelePresence VCS and Expressway Major=x8.1.0
Cisco TelePresence VCS and Expressway Major=x8.1.1
Cisco TelePresence VCS and Expressway Major=x8.1.2
Cisco TelePresence VCS and Expressway Major=x8.1_base
Cisco TelePresence VCS and Expressway Major=x8.2.1
Cisco TelePresence VCS and Expressway Major=x8.2.2
Cisco TelePresence VCS and Expressway Major=x8.2_base
Cisco TelePresence VCS and Expressway Major=x8.5-rc4
Cisco TelePresence VCS and Expressway Major=x8.5.0
Cisco TelePresence VCS and Expressway Major=x8.5.1
Cisco TelePresence VCS and Expressway Major=x8.5.2
Cisco TelePresence VCS and Expressway Major=x8.5.3
Cisco TelePresence VCS and Expressway Major=x8.5_base
Cisco TelePresence VCS and Expressway Major=x8.6.0
Cisco TelePresence VCS and Expressway Major=x8.6.1
Cisco TelePresence VCS and Expressway Major=x8.7.0
Cisco TelePresence VCS and Expressway Major=x8.7.1
Cisco TelePresence VCS and Expressway Major=x8.7.2
Cisco TelePresence VCS and Expressway Major=x8.7.3
Cisco TelePresence VCS and Expressway Major=x8.8.0
Cisco TelePresence VCS and Expressway Major=x8.8.1
Tandberg Video Communication Server=x5.2_base
Tandberg Video Communication Server=x6.0_base
Tandberg Video Communication Server=x6.1_base
Tandberg Video Communication Server=x7.0.0
Tandberg Video Communication Server=x7.0.1
Tandberg Video Communication Server=x7.0.2
Tandberg Video Communication Server=x7.0.3
Tandberg Video Communication Server=x7.1_base
Tandberg Video Communication Server=x7.2.0
Tandberg Video Communication Server=x7.2.1
Tandberg Video Communication Server=x7.2.2
=x8.1.0
=x8.1.1
=x8.1.2
=x8.1_base
=x8.2.1
=x8.2.2
=x8.2_base
=x8.5-rc4
=x8.5.0
=x8.5.1
=x8.5.2
=x8.5.3
=x8.5_base
=x8.6.0
=x8.6.1
=x8.7.0
=x8.7.1
=x8.7.2
=x8.7.3
=x8.8.0
=x8.8.1
=x5.2_base
=x6.0_base
=x6.1_base
=x7.0.0
=x7.0.1
=x7.0.2
=x7.0.3
=x7.1_base
=x7.2.0
=x7.2.1
=x7.2.2

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Frequently Asked Questions

  • What is the severity of CVE-2017-3790?

    The severity of CVE-2017-3790 is classified as high due to its potential to cause a denial of service.

  • How do I fix CVE-2017-3790?

    To fix CVE-2017-3790, you should upgrade to the patched versions of the Cisco Expressway or TelePresence VCS software as specified in the security advisory.

  • Which Cisco products are affected by CVE-2017-3790?

    CVE-2017-3790 affects various versions of Cisco Expressway and Cisco TelePresence Video Communication Server.

  • Can CVE-2017-3790 be exploited remotely?

    Yes, CVE-2017-3790 can be exploited by unauthenticated, remote attackers.

  • What is the potential impact of CVE-2017-3790?

    The potential impact of CVE-2017-3790 is a denial of service condition that could lead to system reloads.

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