CVE-2020-3283

A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) handler of Cisco Firepower Threat Defense (FTD) Software when running on the Cisco Firepower 1000 Series platform could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a communication error between internal functions. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause a buffer underrun, which leads to a crash. The crash causes the affected device to reload.

• cisco secure firewall threat defense (>= 6.4.0 < 6.4.0.9) • cisco asa 5505 firmware 9.12\(2.12\) • cisco asa 5505 firmware 9.13\(0.33\) • cisco asa 5510 firmware 9.12\(2.12\) • cisco asa 5510 firmware 9.13\(0.33\) • cisco asa 5512-x firmware 9.12\(2.12\) • cisco asa 5512-x firmware 9.13\(0.33\) • cisco asa 5515-x firmware 9.12\(2.12\) • cisco asa 5515-x firmware 9.13\(0.33\) • cisco asa 5520 firmware 9.12\(2.12\) • cisco asa 5520 firmware 9.13\(0.33\) • cisco asa 5525-x firmware 9.12\(2.12\) • cisco asa 5525-x firmware 9.13\(0.33\) • cisco asa 5540 firmware 9.12\(2.12\) • cisco asa 5540 firmware 9.13\(0.33\) • cisco asa 5545-x firmware 9.12\(2.12\) • cisco asa 5545-x firmware 9.13\(0.33\) • cisco asa 5550 firmware 9.12\(2.12\) • cisco asa 5550 firmware 9.13\(0.33\) • cisco asa 5555-x firmware 9.12\(2.12\) • cisco asa 5555-x firmware 9.13\(0.33\) • cisco asa 5580 firmware 9.12\(2.12\) • cisco asa 5580 firmware 9.13\(0.33\) • cisco asa 5585-x firmware 9.12\(2.12\) • cisco asa 5585-x firmware 9.13\(0.33\)