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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2020-10-21T18:40:42.858255Z

Updated: 2024-09-17T00:37:17.358Z

Reserved: 2019-12-12T00:00:00

Link: CVE-2020-3572

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-10-21T19:15:18.327

Modified: 2023-11-07T03:22:55.893

Link: CVE-2020-3572

cve-icon Redhat

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