CVE-2021-3053

PAN-OS: Exceptional Condition Denial-of-Service (DoS)

State: Published
Severity: 7.5 High
Published: Sep 8, 2021
Updated: Sep 16, 2024
Reserved: Jan 6, 2021

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	palo_alto

Weaknesses

CWE-755 Improper Handling of Exceptional Conditions

Affected Products

Product	Versions
PAN-OSPalo Alto Networks	10.1.*Not affected 8.1 to before 8.1.20Affectedfrom 8.1.20Not affected 9.0 to before 9.0.14Affectedfrom 9.0.14Not affected 9.1 to before 9.1.9Affectedfrom 9.1.9Not affected 10.0 to before 10.0.5Affectedfrom 10.0.5Not affected

References

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

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