Improper input validation in Cisco Meeting Server - CVE-2017-12311

 

Improper input validation in Cisco Meeting Server - CVE-2017-12311

Published: November 21, 2017


Vulnerability identifier: #VU9383
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12311
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Meeting Server

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to H.264 frame has an invalid picture parameter set (PPS) value. A remote attacker can send a specially crafted H.264 frame and cause the media process to  restart.

How to mitigate CVE-2017-12311

The vulnerability is fixed in the following versions: 2.3.TBD, 2.2.9.

Sources