Tracker / CVE-2020-3572
CVE-2020-3572
A vulnerability in the SSL/TLS session handler of 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. The vulnerability is due to a memory leak when closing SSL/TLS connections in a specific state. An attacker could exploit this vulnerability by establishing several SSL/TLS sessions and ensuring they are closed under certain conditions. A successful exploit could allow the attacker to exhaust memory resources in the affected device, which would prevent it from processing new SSL/TLS connections, resulting in a DoS. Manual intervention is required to recover an affected device.
Affected products and versions
| cisco | adaptive_security_appliance · … → 9.6 |
|---|---|
| cisco | adaptive_security_appliance_software · 9.10.0 → 9.10.1.44 |
| cisco | adaptive_security_appliance_software · 9.12.0 → 9.12.4.4 |
| cisco | adaptive_security_appliance_software · 9.13.0 → 9.13.1.13 |
| cisco | adaptive_security_appliance_software · 9.14.0 → 9.14.1.19 |
| cisco | adaptive_security_appliance_software · 9.8.0 → 9.8.4.26 |
| cisco | adaptive_security_appliance_software · 9.9.0 → 9.9.2.80 |
| cisco | secure_firewall_threat_defense · … → 6.3.0.6 |
| cisco | secure_firewall_threat_defense · 6.4.0 → 6.4.0.10 |
| cisco | secure_firewall_threat_defense · 6.5.0 → 6.6.1 |