CVE-2021-1501
A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow …
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Secure Firewall Threat Defense | from 6.2.2 before 6.4.0.12 from 6.5.0 before 6.6.4 from 6.7.0 before 6.7.0.2 |
| Cisco | Adaptive Security Appliance Software | from 9.8 before 9.8.4.34 from 9.9 before 9.9.2.85 from 9.10 before 9.12.4.18 from 9.13 before 9.13.1.21 from 9.14 before 9.14.2.13 from 9.15 before 9.15.1.15 |