High · published April 29, 2021
A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition.The vulnerability is due to a crash that occurs during a hash lookup for a SIP pinhole connection. An attacker could exploit this vulnerability by sending crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a crash and reload of the affected device.
| Product | Versions | Fixed in |
|---|---|---|
| cisco/secure_firewall_threat_defense | ≥ 6.2.2, < 6.4.0.12 | 6.4.0.12 |
| cisco/secure_firewall_threat_defense | ≥ 6.5.0, < 6.6.4 | 6.6.4 |
| cisco/secure_firewall_threat_defense | ≥ 6.7.0, < 6.7.0.2 | 6.7.0.2 |
| cisco/adaptive_security_appliance_software | ≥ 9.8, < 9.8.4.34 | 9.8.4.34 |
| cisco/adaptive_security_appliance_software | ≥ 9.9, < 9.9.2.85 | 9.9.2.85 |
| cisco/adaptive_security_appliance_software | ≥ 9.10, < 9.12.4.18 | 9.12.4.18 |
| cisco/adaptive_security_appliance_software | ≥ 9.13, < 9.13.1.21 | 9.13.1.21 |
| cisco/adaptive_security_appliance_software | ≥ 9.14, < 9.14.2.13 | 9.14.2.13 |
| cisco/adaptive_security_appliance_software | ≥ 9.15, < 9.15.1.15 | 9.15.1.15 |