CVE-2020-3255
Description
A vulnerability in the packet processing functionality 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 inefficient memory management. An attacker could exploit this vulnerability by sending a high rate of IPv4 or IPv6 traffic through an affected device. This traffic would need to match a configured block action in an access control policy. An exploit could allow the attacker to cause a memory exhaustion condition on the affected device, which would result in a DoS for traffic transiting the device, as well as sluggish performance of the management interface. Once the flood is stopped, performance should return to previous states.
How to fix
- cisco secure_firewall_threat_defense6.2.3.16, 6.3.0.6, 6.4.0.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco secure_firewall_threat_defense | 6.2.3 ≤ v < 6.2.3.16, 6.3.0 ≤ v < 6.3.0.6, 6.4.0 ≤ v < 6.4.0.9 | 6.2.3.16, 6.3.0.6, 6.4.0.9 |
| cisco asa_5505_firmware | 9.10\(1.3\) | — |
| cisco asa_5510_firmware | 9.10\(1.3\) | — |
| cisco asa_5512-x_firmware | 9.10\(1.3\) | — |
| cisco asa_5515-x_firmware | 9.10\(1.3\) | — |
| cisco asa_5520_firmware | 9.10\(1.3\) | — |
| cisco asa_5525-x_firmware | 9.10\(1.3\) | — |
| cisco asa_5540_firmware | 9.10\(1.3\) | — |
| cisco asa_5545-x_firmware | 9.10\(1.3\) | — |
| cisco asa_5550_firmware | 9.10\(1.3\) | — |
| cisco asa_5555-x_firmware | 9.10\(1.3\) | — |
| cisco asa_5580_firmware | 9.10\(1.3\) | — |
| cisco asa_5585-x_firmware | 9.10\(1.3\) | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.