Memory corruption in Cisco Expressway and Cisco TelePresence Video Communication Server - CVE-2017-3790

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Main Vulnerability Database Vulnerabilities #VU12994

Memory corruption in Cisco Expressway and Cisco TelePresence Video Communication Server - CVE-2017-3790

Published: January 25, 2017 / Updated: May 23, 2018


Vulnerability identifier: #VU12994
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-3790
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Expressway
Cisco TelePresence Video Communication Server

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error when processing h323 calls. A remote unauthenticated attacker can initiate connection to the vulnerable service, send specially crafted h224 data in Real-Time Transport Protocol (RTP) packets, trigger memory corruption and h323 call parser and crash the service.

Successful exploitation of the vulnerability requires that the attacker can send network packets to h323 interface.

How to mitigate CVE-2017-3790

Update to version X8.8.2.

Sources