CVE-2019-15256

A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. The attacker does not need valid credentials to authenticate the VPN session, nor does the attacker's source address need to match a peer statement in the crypto map applied to the ingress interface of the affected device. An exploit could allow the attacker to exhaust system memory resources, leading to a reload of an affected device.

• cisco adaptive security appliance software (>= 9.7 < 9.8.4.10) • cisco adaptive security appliance software (>= 9.9 < 9.9.2.47) • cisco adaptive security appliance software (>= 9.10 < 9.10.1.30) • cisco adaptive security appliance software (>= 9.12 < 9.12.2.5) • cisco secure firewall threat defense (>= 6.2.0 < 6.2.3.11) • cisco secure firewall threat defense (>= 6.3.0 < 6.3.0.2) • cisco asa 5505 firmware 9.9\(2.4\) • cisco asa 5505 firmware 201.4\(1.21\) • cisco asa 5510 firmware 9.9\(2.4\) • cisco asa 5510 firmware 201.4\(1.21\) • cisco asa 5512-x firmware 9.9\(2.4\) • cisco asa 5512-x firmware 201.4\(1.21\) • cisco asa 5515-x firmware 9.9\(2.4\) • cisco asa 5515-x firmware 201.4\(1.21\) • cisco asa 5520 firmware 9.9\(2.4\) • cisco asa 5520 firmware 201.4\(1.21\) • cisco asa 5525-x firmware 9.9\(2.4\) • cisco asa 5525-x firmware 201.4\(1.21\) • cisco asa 5540 firmware 9.9\(2.4\) • cisco asa 5540 firmware 201.4\(1.21\) • cisco asa 5545-x firmware 9.9\(2.4\) • cisco asa 5545-x firmware 201.4\(1.21\) • cisco asa 5550 firmware 9.9\(2.4\) • cisco asa 5550 firmware 201.4\(1.21\) • cisco asa 5555-x firmware 9.9\(2.4\) • cisco asa 5555-x firmware 201.4\(1.21\) • cisco asa 5580 firmware 9.9\(2.4\) • cisco asa 5580 firmware 201.4\(1.21\)