CVE-2018-0358 Denial of service in Cisco TelePresence Video Communication Server unknown

High 7.5 Published 21 Jun 2018 Updated 29 Nov 2024

Unauthenticated remote attackers can cause a denial of service by exhausting file descriptors through high-volume TCP connections on Cisco VCS Expressway.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0358?

CVE-2018-0358 is a high-severity denial of service vulnerability in Cisco TelePresence Video Communication Server unknown, published on 21 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the file descriptor handling of Cisco TelePresence Video Communication Server (VCS) Expressway could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to exhaustion of file descriptors while processing a high volume of traffic. An attacker could exploit this vulnerability by establishing a high number of concurrent TCP connections to the vulnerable system. An exploit could allow the attacker to cause a restart in a specific process, resulting in a temporary interruption of service. Cisco Bug IDs: CSCvh77056, CSCvh77058, CSCvh95264.

Weakness: CWE-770, CWE-769

Which versions are affected by CVE-2018-0358?

It affects 1 product.

Products include Cisco Telepresence Video Communication Server.

How do I fix CVE-2018-0358?

No fix has been published for CVE-2018-0358 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-2018-0358 being exploited?

There is no known exploitation of CVE-2018-0358 in the wild and no public exploit code.

Sources

Also known as GHSA-hfw2-jvj9-frm4.