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.
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History
Wed, 13 Nov 2024 18:15:00 +0000
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-13T17:47:00.373Z
Reserved: 2019-12-12T00:00:00
Link: CVE-2020-3572
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Updated: 2024-08-04T07:37:55.499Z
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Status : Modified
Published: 2020-10-21T19:15:18.327
Modified: 2024-11-21T05:31:20.360
Link: CVE-2020-3572
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