What is CVE-2021-3053?

CVE-2021-3053 is an improper handling of exceptional conditions vulnerability in the Palo Alto Networks PAN-OS dataplane.

How does CVE-2021-3053 affect Palo Alto Networks PAN-OS?

CVE-2021-3053 affects Palo Alto Networks PAN-OS versions 8.1.0 to 8.1.20, 9.0.0 to 9.0.14, 9.1.0 to 9.1.9, and 10.0.0 to 10.0.5.

How severe is CVE-2021-3053?

CVE-2021-3053 has a severity rating of 7.5 (High).

How can an attacker exploit CVE-2021-3053?

An unauthenticated network-based attacker can exploit CVE-2021-3053 by sending specifically crafted traffic through the firewall, causing the service to crash.

Is there a fix available for CVE-2021-3053?

Yes, Palo Alto Networks has released security updates to address CVE-2021-3053.

Vulnerability/
CVE-2021-3053

high

7.5

CWE

755

8/9/2021

15/9/2021

CVE-2021-3053

First published: Wed Sep 08 2021(Updated: )

An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. 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 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.

Credit: psirt@paloaltonetworks.com

Affected Software	Affected Version	How to fix
Paloaltonetworks Pan-os	>=8.1.0<8.1.20
Paloaltonetworks Pan-os	>=9.0.0<9.0.14
Paloaltonetworks Pan-os	>=9.1.0<9.1.9
Paloaltonetworks Pan-os	>=10.0.0<10.0.5

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Reference Links

https://security.paloaltonetworks.com/CVE-2021-3053

Frequently Asked Questions

What is CVE-2021-3053?
CVE-2021-3053 is an improper handling of exceptional conditions vulnerability in the Palo Alto Networks PAN-OS dataplane.
How does CVE-2021-3053 affect Palo Alto Networks PAN-OS?
CVE-2021-3053 affects Palo Alto Networks PAN-OS versions 8.1.0 to 8.1.20, 9.0.0 to 9.0.14, 9.1.0 to 9.1.9, and 10.0.0 to 10.0.5.
How severe is CVE-2021-3053?
CVE-2021-3053 has a severity rating of 7.5 (High).
How can an attacker exploit CVE-2021-3053?
An unauthenticated network-based attacker can exploit CVE-2021-3053 by sending specifically crafted traffic through the firewall, causing the service to crash.
Is there a fix available for CVE-2021-3053?
Yes, Palo Alto Networks has released security updates to address CVE-2021-3053.

collector/nvd-index
vendor/paloaltonetworks
canonical/paloaltonetworks pan-os
version/paloaltonetworks pan-os/8.1.0
version/paloaltonetworks pan-os/9.0.0
version/paloaltonetworks pan-os/9.1.0
version/paloaltonetworks pan-os/10.0.0

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