Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Threat Defense | >= 6.2.3, < 6.2.3.16 |
| Cisco | Asa 5505 Firmware | 9.10\(1.3\) |
| Cisco | Asa 5505 | - |
| Cisco | Asa 5510 Firmware | 9.10\(1.3\) |
| Cisco | Asa 5510 | - |
| Cisco | Asa 5512-X Firmware | 9.10\(1.3\) |
| Cisco | Asa 5512-X | - |
| Cisco | Asa 5515-X Firmware | 9.10\(1.3\) |
| Cisco | Asa 5515-X | - |
| Cisco | Asa 5520 Firmware | 9.10\(1.3\) |
| Cisco | Asa 5520 | - |
| Cisco | Asa 5525-X Firmware | 9.10\(1.3\) |
| Cisco | Asa 5525-X | - |
| Cisco | Asa 5540 Firmware | 9.10\(1.3\) |
| Cisco | Asa 5540 | - |
| Cisco | Asa 5545-X Firmware | 9.10\(1.3\) |
| Cisco | Asa 5545-X | - |
| Cisco | Asa 5550 Firmware | 9.10\(1.3\) |
| Cisco | Asa 5550 | - |
| Cisco | Asa 5555-X Firmware | 9.10\(1.3\) |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fVendor Advisory
FAQ
What is CVE-2020-3255?
CVE-2020-3255 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2020-3255?
CVE-2020-3255 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3255?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Threat Defense, Cisco Asa 5505 Firmware, Cisco Asa 5505, Cisco Asa 5510 Firmware, Cisco Asa 5510.