CVE-2023-20031

Summary

CVE-2023-20031 is a vulnerability affecting the SSL/TLS certificate handling in the Snort 3 Detection Engine integrated with Cisco Firepower Threat Defense (FTD) Software. This issue arises due to a logic error that occurs when the Snort engine accesses an SSL/TLS certificate under heavy load while initiating an SSL connection. An attacker can exploit this glitch by sending a high volume of SSL/TLS connection requests to the affected device, potentially leading to the Snort engine reloading. Depending on the configuration, this could result in a bypass or a denial of service (DoS) condition. The Snort engine will automatically restart upon reloading, requiring no manual intervention.

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