CVE-2020-3196

A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to exhaust memory resources on the affected device, leading to a denial of service (DoS) condition. The vulnerability is due to improper resource management for inbound SSL/TLS connections. An attacker could exploit this vulnerability by establishing multiple SSL/TLS connections with specific conditions to the affected device. A successful exploit could allow the attacker to exhaust the memory on the affected device, causing the device to stop accepting new SSL/TLS connections and resulting in a DoS condition for services on the device that process SSL/TLS traffic. Manual intervention is required to recover an affected device.

• cisco secure firewall threat defense (>= 6.2.3 < 6.2.3.16) • cisco secure firewall threat defense (>= 6.3.0 < 6.3.0.6) • cisco secure firewall threat defense (>= 6.4.0 < 6.4.0.9) • cisco secure firewall threat defense (>= 6.5.0 < 6.5.0.5) • cisco asa 5505 firmware 9.4\(4\) • cisco asa 5505 firmware 9.8\(4.18\) • cisco asa 5505 firmware 100.13\(0\) • cisco asa 5510 firmware 9.4\(4\) • cisco asa 5510 firmware 9.8\(4.18\) • cisco asa 5510 firmware 100.13\(0\) • cisco asa 5512-x firmware 9.4\(4\) • cisco asa 5512-x firmware 9.8\(4.18\) • cisco asa 5512-x firmware 100.13\(0\) • cisco asa 5515-x firmware 9.4\(4\) • cisco asa 5515-x firmware 9.8\(4.18\) • cisco asa 5515-x firmware 100.13\(0\) • cisco asa 5520 firmware 9.4\(4\) • cisco asa 5520 firmware 9.8\(4.18\) • cisco asa 5520 firmware 100.13\(0\) • cisco asa 5525-x firmware 9.4\(4\) • cisco asa 5525-x firmware 9.8\(4.18\) • cisco asa 5525-x firmware 100.13\(0\) • cisco asa 5540 firmware 9.4\(4\) • cisco asa 5540 firmware 9.8\(4.18\) • cisco asa 5540 firmware 100.13\(0\) • cisco asa 5545-x firmware 9.4\(4\) • cisco asa 5545-x firmware 9.8\(4.18\) • cisco asa 5545-x firmware 100.13\(0\) • cisco asa 5550 firmware 9.4\(4\) • cisco asa 5550 firmware 9.8\(4.18\) • cisco asa 5550 firmware 100.13\(0\) • cisco asa 5555-x firmware 9.4\(4\) • cisco asa 5555-x firmware 9.8\(4.18\) • cisco asa 5555-x firmware 100.13\(0\) • cisco asa 5580 firmware 9.4\(4\) • cisco asa 5580 firmware 9.8\(4.18\) • cisco asa 5580 firmware 100.13\(0\) • cisco asa 5585-x firmware 9.4\(4\) • cisco asa 5585-x firmware 9.8\(4.18\) • cisco asa 5585-x firmware 100.13\(0\) • cisco adaptive security appliance software (>= 9.6 < 9.6.4.40) • cisco adaptive security appliance software (>= 9.8 < 9.8.4.20) • cisco adaptive security appliance software (>= 9.9 < 9.9.2.66) • cisco adaptive security appliance software (>= 9.10 < 9.10.1.37) • cisco adaptive security appliance software (>= 9.12 < 9.12.3.2) • cisco adaptive security appliance software (>= 9.13 < 9.13.1.7)