High · published October 27, 2021
A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/adaptive_security_appliance | < 9.8.4.40 | 9.8.4.40 |
| cisco/secure_firewall_threat_defense | < 6.2.3.17 | 6.2.3.17 |
| cisco/secure_firewall_threat_defense | ≥ 6.3.0, < 6.4.0.13 | 6.4.0.13 |
| cisco/secure_firewall_threat_defense | ≥ 6.5.0, < 6.6.5 | 6.6.5 |
| cisco/secure_firewall_threat_defense | ≥ 6.7.0, < 6.7.0.3 | 6.7.0.3 |
| cisco/secure_firewall_threat_defense | ≥ 7.0.0, < 7.0.1 | 7.0.1 |
| cisco/adaptive_security_appliance_software | ≥ 9.9.0, < 9.12.4.26 | 9.12.4.26 |
| cisco/adaptive_security_appliance_software | ≥ 9.13.0, < 9.14.3.9 | 9.14.3.9 |
| cisco/adaptive_security_appliance_software | ≥ 9.15.0, < 9.15.1.17 | 9.15.1.17 |
| cisco/adaptive_security_appliance_software | ≥ 9.16.0, < 9.16.2.3 | 9.16.2.3 |
| cisco/asa_5512-x_firmware | all versions | — |
| cisco/asa_5512-x_firmware | all versions | — |
| cisco/asa_5505_firmware | all versions | — |
| cisco/asa_5505_firmware | all versions | — |
| cisco/asa_5515-x_firmware | all versions | — |
| cisco/asa_5515-x_firmware | all versions | — |
| cisco/asa_5525-x_firmware | all versions | — |
| cisco/asa_5525-x_firmware | all versions | — |
| cisco/asa_5545-x_firmware | all versions | — |
| cisco/asa_5545-x_firmware | all versions | — |
| cisco/asa_5555-x_firmware | all versions | — |
| cisco/asa_5555-x_firmware | all versions | — |
| cisco/asa_5580_firmware | all versions | — |
| cisco/asa_5580_firmware | all versions | — |
| cisco/asa_5585-x_firmware | all versions | — |
| cisco/asa_5585-x_firmware | all versions | — |