CVE-2019-1711 Cisco IOS XR gRPC Software Denial of Service Vulnerability

Medium 5.3 Published 17 Apr 2019 Updated 19 Nov 2024

Unauthenticated remote attackers can crash the Event Management Service daemon by sending repeated gRPC requests, causing a denial of service on Cisco IOS XR devices.

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-2019-1711?

CVE-2019-1711 is a medium-severity denial of service vulnerability in Cisco Ios Xr, published on 17 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could cause the emsd process to crash, resulting in a DoS condition. Resolved in Cisco IOS XR 6.5.1 and later.

Weakness: CWE-20

Which versions are affected by CVE-2019-1711?

It affects 1 product.

Products include Cisco Ios Xr.

How do I fix CVE-2019-1711?

No fix has been published for CVE-2019-1711 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-2019-1711 being exploited?

There is no known exploitation of CVE-2019-1711 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-3629-c95x-2r49.