CVE-2019-1712 Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability

Medium 5.8 Published 17 Apr 2019 Updated 19 Nov 2024

Remote attackers can cause a denial of service by sending crafted AutoRP packets to Cisco IOS XR devices, requiring software upgrades to mitigate.

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-2019-1712?

CVE-2019-1712 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 Protocol Independent Multicast (PIM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the PIM process to restart, resulting in a denial of service condition on an affected device. The vulnerability is due to the incorrect processing of crafted AutoRP packets. An attacker could exploit this vulnerability by sending crafted packets to port UDP 496 on a reachable IP address on the device. A successful exploit could allow the attacker to cause the PIM process to restart. Software versions prior to 6.2.3, 6.3.2, 6.4.0, and 6.5.1 are affected.

Weakness: CWE-20

Which versions are affected by CVE-2019-1712?

It affects 1 product.

Products include Cisco Ios Xr.

How do I fix CVE-2019-1712?

No fix has been published for CVE-2019-1712 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-2019-1712 being exploited?

There is no known exploitation of CVE-2019-1712 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-95fc-rj6v-4rhr.