CVE-2017-12362 Denial of service in Cisco Meeting Server

What is CVE-2017-12362?

CVE-2017-12362 is a medium-severity denial of service vulnerability in Cisco Meeting Server, published on 30 Nov 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in Cisco Meeting Server versions prior to 2.2.2 could allow an authenticated, remote attacker to cause the system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to video calls being made on systems with a particular configuration. An attacker could exploit this by knowing a valid URI that directs to a Cisco Meeting Server. An attacker could then make a video call and cause the system to reload. Cisco Bug IDs: CSCve65931.

Weakness: CWE-399

Which versions are affected by CVE-2017-12362?

It affects 1 product.

Products include Cisco Meeting Server.

How do I fix CVE-2017-12362?

No fix has been published for CVE-2017-12362 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-12362 being exploited?

There is no known exploitation of CVE-2017-12362 in the wild and no public exploit code.

Other vulnerabilities in Cisco Meeting Server

• CVE-2016-6448 Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5 Critical 9.8
• CVE-2017-12249 Misconfiguration in Cisco Meeting Server Critical 9.1
• CVE-2016-6445 Auth bypass in Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6 Critical 9.1
• CVE-2018-0439 Cisco Meeting Server Cross-Site Request Forgery Vulnerability High 8.8
• CVE-2016-6444 Cross-site request forgery in Cisco Meeting Server 1.8, 1.9, 2.0 High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4qfj-x73p-66v9.