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

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

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