CVE-2021-3053

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Palo Alto NetworksPAN-OS10.1.*unaffected
Palo Alto NetworksPAN-OS8.1 < 8.1.20affected
Palo Alto NetworksPAN-OS9.0 < 9.0.14affected
Palo Alto NetworksPAN-OS9.1 < 9.1.9affected
Palo Alto NetworksPAN-OS10.0 < 10.0.5affected

Weaknesses

  • CWE-755: CWE-755 Improper Handling of Exceptional Conditions

Workarounds

There are no known workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

References