CVE-2019-0060 Junos OS: SRX Series: flowd process crash due to processing of specific transit IP packets

High 7.5 Published 9 Oct 2019 Updated 16 Sep 2024

Attackers can cause a denial of service on Juniper SRX gateways by sending specific IP packets through configured IPSec tunnels.

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-2019-0060?

CVE-2019-0060 is a high-severity denial of service vulnerability in Juniper Junos, published on 9 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The flowd process, responsible for forwarding traffic in SRX Series services gateways, may crash and restart when processing specific transit IP packets through an IPSec tunnel. Continued processing of these packets may result in an extended Denial of Service (DoS) condition. This issue only occurs when IPSec tunnels are configured. Systems without IPSec tunnel configurations are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180 on SRX Series; 18.2 versions 18.2R2-S1 and later, prior to 18.2R3 on SRX Series; 18.4 versions prior to 18.4R2 on SRX Series.

Weakness: CWE-755

Which versions are affected by CVE-2019-0060?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2019-0060?

No fix has been published for CVE-2019-0060 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-2019-0060 being exploited?

There is no known exploitation of CVE-2019-0060 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-c5vr-66hv-6685.