A vulnerability in the SSL/TLS session handler of Cisco Adaptive Security Appliance (ASA) Software and 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 leak when closing SSL/TLS connections in a specific state. An attacker could exploit this vulnerability by establishing several SSL/TLS sessions and ensuring they are closed under certain conditions. A successful exploit could allow the attacker to exhaust memory resources in the affected device, which would prevent it from processing new SSL/TLS connections, resulting in a DoS. Manual intervention is required to recover an affected device.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-tcp-dos-N3DMnU4T | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
16 Aug 2023, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Cisco adaptive Security Appliance Software
|
|
| CPE | cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* |
19 Oct 2021, 14:49
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-401 |
Information
Published : 2020-10-21 19:15
Updated : 2023-12-10 13:41
NVD link : CVE-2020-3572
Mitre link : CVE-2020-3572
CVE.ORG link : CVE-2020-3572
JSON object : View
Products Affected
cisco
- adaptive_security_appliance_software
- firepower_threat_defense
- adaptive_security_appliance