High · published October 21, 2020
A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances. The vulnerability is due to insufficient input validation in the ssl_inspection component. An attacker could exploit this vulnerability by sending a malformed TLS packet through a Cisco Adaptive Security Appliance (ASA). A successful exploit could allow the attacker to crash a Snort instance, resulting in a denial of service (DoS) condition.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/secure_firewall_threat_defense | < 6.4.0.10 | 6.4.0.10 |
| cisco/secure_firewall_threat_defense | ≥ 6.5.0, < 6.5.0.5 | 6.5.0.5 |