CVE-2020-3179

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of 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 handling error when GRE over IPv6 traffic is processed. An attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.

• cisco secure firewall threat defense (>= 6.3.0 < 6.3.0.5) • cisco secure firewall threat defense (>= 6.4.0 < 6.4.0.6) • cisco asa 5505 firmware 9.9\(2\) • cisco asa 5505 firmware 101.5\(1.26\) • cisco asa 5510 firmware 9.9\(2\) • cisco asa 5510 firmware 101.5\(1.26\) • cisco asa 5512-x firmware 9.9\(2\) • cisco asa 5512-x firmware 101.5\(1.26\) • cisco asa 5515-x firmware 9.9\(2\) • cisco asa 5515-x firmware 101.5\(1.26\) • cisco asa 5520 firmware 9.9\(2\) • cisco asa 5520 firmware 101.5\(1.26\) • cisco asa 5525-x firmware 9.9\(2\) • cisco asa 5525-x firmware 101.5\(1.26\) • cisco asa 5540 firmware 9.9\(2\) • cisco asa 5540 firmware 101.5\(1.26\) • cisco asa 5545-x firmware 9.9\(2\) • cisco asa 5545-x firmware 101.5\(1.26\) • cisco asa 5550 firmware 9.9\(2\) • cisco asa 5550 firmware 101.5\(1.26\) • cisco asa 5555-x firmware 9.9\(2\) • cisco asa 5555-x firmware 101.5\(1.26\) • cisco asa 5580 firmware 9.9\(2\) • cisco asa 5580 firmware 101.5\(1.26\) • cisco asa 5585-x firmware 9.9\(2\) • cisco asa 5585-x firmware 101.5\(1.26\)