What is CVE-2020-2031?

CVE-2020-2031 is a medium-severity vulnerability in Palo Alto Networks Pan-Os, classified under Integer Underflow. CVSS score: 4.9/10. Published 2020-07-08.

How severe is CVE-2020-2031?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Integer overflow in Palo Alto Networks Pan-Os

CVE-2020-2031

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.

EPSS: 0.011 (63.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Palo Alto Networks Pan-os — versions 9.0.*, 8.1.*, 9.1
Paloaltonetworks Pan-os

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

psirt@paloaltonetworks.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-2031?: CVE-2020-2031 is a medium-severity vulnerability in Palo Alto Networks Pan-Os, classified under Integer Underflow. CVSS score: 4.9/10. Published 2020-07-08.
How severe is CVE-2020-2031?: Medium severity. CVSS v3 base score is 4.9 out of 10.