Vulnerability Description
A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature 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 a memory handling error when GRE over IPv6 traffic is processed. An attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Threat Defense | >= 6.3.0, < 6.3.0.5 |
| Cisco | Asa 5505 Firmware | 9.9\(2\) |
| Cisco | Asa 5505 | - |
| Cisco | Asa 5510 Firmware | 9.9\(2\) |
| Cisco | Asa 5510 | - |
| Cisco | Asa 5512-X Firmware | 9.9\(2\) |
| Cisco | Asa 5512-X | - |
| Cisco | Asa 5515-X Firmware | 9.9\(2\) |
| Cisco | Asa 5515-X | - |
| Cisco | Asa 5520 Firmware | 9.9\(2\) |
| Cisco | Asa 5520 | - |
| Cisco | Asa 5525-X Firmware | 9.9\(2\) |
| Cisco | Asa 5525-X | - |
| Cisco | Asa 5540 Firmware | 9.9\(2\) |
| Cisco | Asa 5540 | - |
| Cisco | Asa 5545-X Firmware | 9.9\(2\) |
| Cisco | Asa 5545-X | - |
| Cisco | Asa 5550 Firmware | 9.9\(2\) |
| Cisco | Asa 5550 | - |
| Cisco | Asa 5555-X Firmware | 9.9\(2\) |
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-2020-3179?
CVE-2020-3179 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a deni...
How severe is CVE-2020-3179?
CVE-2020-3179 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-2020-3179?
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.