High · published October 21, 2020
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.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/secure_firewall_threat_defense | ≥ 6.3.0, < 6.3.0.6 | 6.3.0.6 |
| cisco/secure_firewall_threat_defense | ≥ 6.4.0, < 6.4.0.10 | 6.4.0.10 |
| cisco/secure_firewall_threat_defense | ≥ 6.5.0, < 6.5.0.5 | 6.5.0.5 |