What is the vulnerability ID of this issue?

The vulnerability ID is CVE-2020-2031.

Who can exploit this vulnerability?

Authenticated administrators can exploit this vulnerability.

What is the impact of this vulnerability?

The impact is denial of service (DoS) as the component stops responding.

What is the severity rating of this vulnerability?

The severity rating is medium with a CVSS score of 4.9.

How can this vulnerability be fixed?

Paloalto Networks has released a patch that fixes this vulnerability. It is recommended to update to PAN-OS version 9.1.3 or later.

Vulnerability/
CVE-2020-2031

medium

6.8

CWE

191

8/7/2020

16/9/2024

CVE-2020-2031: PAN-OS: Integer underflow in the management interface

Q: What component is affected by this vulnerability?

The dnsproxyd component of the PAN-OS management interface is affected.

First published: Wed Jul 08 2020(Updated: )

An integer underflow vulnerability in the dnsproxyd component of the PAN-OS management interface allows authenticated administrators to issue a command from the command line interface that causes the component to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 9.1 versions earlier than PAN-OS 9.1.3. This issue does not impact PAN-OS 8.1, PAN-OS 9.0, or Prisma Access services.

Credit: psirt@paloaltonetworks.com

Affected Software	Affected Version	How to fix
Paloaltonetworks Pan-os	>=9.1.0<9.1.3

Remedy

This issue is fixed in PAN-OS 9.1.3 and all later PAN-OS versions.

Never miss a vulnerability like this again

Reference Links

https://security.paloaltonetworks.com/CVE-2020-2031

Frequently Asked Questions

What is the vulnerability ID of this issue?
The vulnerability ID is CVE-2020-2031.
What component is affected by this vulnerability?
The dnsproxyd component of the PAN-OS management interface is affected.
Who can exploit this vulnerability?
Authenticated administrators can exploit this vulnerability.
What is the impact of this vulnerability?
The impact is denial of service (DoS) as the component stops responding.
What is the severity rating of this vulnerability?
The severity rating is medium with a CVSS score of 4.9.
How can this vulnerability be fixed?
Paloalto Networks has released a patch that fixes this vulnerability. It is recommended to update to PAN-OS version 9.1.3 or later.

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version/paloaltonetworks pan-os/9.1.0

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