CVE-2020-2031 MEDIUM

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

Vendor Palo Alto Networks

Product PAN-OS

Weakness CWE-191

Published July 8, 2020

Last update September 16, 2024

View on NVD All CVEs

CVSS base score

4.9/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality None

Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 8, 2020 CVE published

September 16, 2024 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2020-2031 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/191.html