CVE-2017-6763
HighSummary
A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets.
Risk Assessment
An attacker could exploit this vulnerability to cause a brief interruption of media traffic for certain users, potentially impacting service availability within the organization.
Recommendation
It is recommended to update Cisco Meeting Server to the latest version to mitigate this vulnerability and to monitor the system for unauthorized access attempts.
Other vulnerabilities in Cisco Meeting Server (CMS) 2.1.4
See all- CVE-2017-3830High
A vulnerability in an internal API of the Cisco Meeting Server (CMS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected appliance.
- CVE-2017-12249Critical
A vulnerability in the TURN server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthorized access to components or sensitive information in an affected system. The issue is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports.
Original NVD description (English source)
A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur. Cisco Bug IDs: CSCve10131.