CVE-2020-3571: Cisco Firepower 4110 ICMP Flood Denial of Service Vulnerability
First published: Wed Oct 21 2020(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Threat Defense | >=6.3.0<6.3.0.6 | |
| Cisco Firepower Threat Defense | >=6.4.0<6.4.0.10 | |
| Cisco Firepower Threat Defense | >=6.5.0<6.5.0.5 | |
| Cisco Firepower 4110 | ||
| Cisco Firepower 4112 | ||
| Cisco Firepower 4115 | ||
| Cisco Firepower 4120 | ||
| Cisco Firepower 4125 | ||
| Cisco Firepower 4140 | ||
| Cisco Firepower 4145 | ||
| Cisco Firepower 4150 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3571?
CVE-2020-3571 is a vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances.
How does CVE-2020-3571 affect Cisco Firepower Threat Defense?
CVE-2020-3571 allows an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
What is the severity of CVE-2020-3571?
CVE-2020-3571 has a severity value of 8.6, which is considered high.
Which versions of Cisco Firepower Threat Defense are affected by CVE-2020-3571?
CVE-2020-3571 affects Cisco Firepower Threat Defense versions 6.3.0 through 6.5.0.
How can I fix CVE-2020-3571?
To fix CVE-2020-3571, it is recommended to upgrade to a version of Cisco Firepower Threat Defense that is not affected by the vulnerability.
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- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/6.3.0
- version/cisco firepower threat defense/6.4.0
- version/cisco firepower threat defense/6.5.0
- canonical/cisco firepower 4110
- canonical/cisco firepower 4112
- canonical/cisco firepower 4115
- canonical/cisco firepower 4120
- canonical/cisco firepower 4125
- canonical/cisco firepower 4140
- canonical/cisco firepower 4145
- canonical/cisco firepower 4150