CVE-2020-2031

MEDIUM

PAN-OS 9.1.0-9.1.2 - Authenticated Denial of Service via dnsproxyd Integer Underflow

Title source: llm

Description

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.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

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

Scores

CVSS v3 4.9

EPSS 0.0032

EPSS Percentile 55.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-191

Status published

Products (1)

paloaltonetworks/pan-os 9.1.0 - 9.1.3

Published Jul 08, 2020

Tracked Since Feb 18, 2026