CVE-2019-0064: Junos OS: SRX5000 Series: flowd process crash due to receipt of specific TCP packet

Published Oct 9, 2019

Updated

On SRX5000 Series devices, if 'set security zones security-zone <zone> tcp-rst' is configured, the flowd process may crash when a specific TCP packet is received by the device and triggers a new session. The process restarts automatically. However, receipt of a constant stream of these TCP packets may result in an extended Denial of Service (DoS) condition on the device. This issue affects Juniper Networks Junos OS: 18.2R3 on SRX 5000 Series; 18.4R2 on SRX 5000 Series; 19.2R1 on SRX 5000 Series.

Affected Software

6 affected components

Juniper Junos=18.2-r3

Juniper Junos=18.4-r2

Juniper Junos=19.2-r1

Juniper SRX5400

Juniper SRX5600

Juniper SRX5800

Remediation

Information

The following software releases have been updated to resolve this specific issue: 18.2R3-S1, 18.4R2-S1, 18.4R3, 19.2R1-S1, 19.2R2, 19.3R1, and all subsequent releases.

Event History

Oct 9, 2019

CVE Published

via MITRE·07:26 PM

Data Sourced

via MITRE·07:26 PM

RemedyDescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2019-0064?

CVE-2019-0064 is categorized as a Medium severity vulnerability.

How do I fix CVE-2019-0064?

To mitigate CVE-2019-0064, upgrade to the recommended Junos version which addresses this issue.

What devices are affected by CVE-2019-0064?

CVE-2019-0064 affects Juniper SRX5000 Series devices running specific versions of Junos OS.

What happens when CVE-2019-0064 is exploited?

Exploitation of CVE-2019-0064 can cause the flowd process to crash and restart automatically under certain conditions.

Is CVE-2019-0064 a remote code execution vulnerability?

CVE-2019-0064 does not classify as a remote code execution vulnerability, but it can lead to service disruption.