CVE-2020-3571
Description
A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.
How to fix
- cisco secure_firewall_threat_defense6.3.0.6, 6.4.0.10, 6.5.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco secure_firewall_threat_defense | 6.3.0 ≤ v < 6.3.0.6, 6.4.0 ≤ v < 6.4.0.10, 6.5.0 ≤ v < 6.5.0.5 | 6.3.0.6, 6.4.0.10, 6.5.0.5 |
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