CVE-2019-1869 Cisco StarOS Denial of Service Vulnerability

High 8.6 Published 20 Jun 2019 Updated 19 Nov 2024

Unauthenticated remote attackers can cause a denial of service on Cisco StarOS virtual platforms by sending crafted packets, requiring manual device reload.

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-2019-1869?

CVE-2019-1869 is a high-severity denial of service vulnerability in Cisco ASR 5000 Series Software, published on 20 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the internal packet-processing functionality of the Cisco StarOS operating system running on virtual platforms could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service interface from receiving any traffic, which would lead to a DoS condition on the affected interface. The device may have to be manually reloaded to recover from exploitation of this vulnerability.

Weakness: CWE-824

Which versions are affected by CVE-2019-1869?

It affects 1 product.

Products include Cisco Staros.

How do I fix CVE-2019-1869?

No fix has been published for CVE-2019-1869 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-2019-1869 being exploited?

There is no known exploitation of CVE-2019-1869 in the wild and no public exploit code.

Sources

Also known as GHSA-r863-66v2-rjq3.