Vulnerability Description
A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Threat Defense | >= 6.3.0, < 6.3.0.6 |
| Cisco | Firepower 4110 | - |
| Cisco | Firepower 4112 | - |
| Cisco | Firepower 4115 | - |
| Cisco | Firepower 4120 | - |
| Cisco | Firepower 4125 | - |
| Cisco | Firepower 4140 | - |
| Cisco | Firepower 4145 | - |
| Cisco | Firepower 4150 | - |
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-2020-3571?
CVE-2020-3571 is a vulnerability with a CVSS score of 8.6 (HIGH). A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a de...
How severe is CVE-2020-3571?
CVE-2020-3571 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3571?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Threat Defense, Cisco Firepower 4110, Cisco Firepower 4112, Cisco Firepower 4115, Cisco Firepower 4120.