CVE-2018-0050 Junos OS: Receipt of a malformed MPLS RSVP packet leads to a Routing Protocols Daemon (RPD) crash.

High 7.5 Published 10 Oct 2018 Updated 17 Sep 2024

An attacker can cause a sustained Denial of Service by sending malformed MPLS RSVP packets to a Junos OS device configured to receive such traffic.

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-2018-0050?

CVE-2018-0050 is a high-severity denial of service vulnerability in Juniper Junos, published on 10 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An error handling vulnerability in Routing Protocols Daemon (RPD) of Juniper Networks Junos OS allows an attacker to cause RPD to crash. Continued receipt of this malformed MPLS RSVP packet will cause a sustained Denial of Service condition. Affected releases are Juniper Networks Junos OS: 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D48 on QFX Switching; 14.2 versions prior to 14.1X53-D130 on QFabric System; 14.2 versions prior to 14.2R4. This issue does not affect versions of Junos OS before 14.1R1. Junos OS RSVP only supports IPv4. IPv6 is not affected by this issue. This issue require it to be received on an interface configured to receive this type of traffic.

Weakness: CWE-20

Which versions are affected by CVE-2018-0050?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2018-0050?

No fix has been published for CVE-2018-0050 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-2018-0050 being exploited?

There is no known exploitation of CVE-2018-0050 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-hmcw-q8v8-4633.