CVE-2023-3817

CVSS 3.1 Score 5.3 of 10 (medium)

Details

Published Jul 31, 2023
Updated: Feb 4, 2024
CWE ID 834

Summary

CVE-2023-3817 is a cyber vulnerability that affects multiple products, including OpenSSL. The vulnerability occurs when checking excessively long Diffie-Hellman (DH) keys or parameters, resulting in slow performance. This issue can be exploited by attackers who provide untrusted DH keys or parameters, leading to a potential Denial of Service (DoS) attack. The function DH_check() is affected, and it is called by various other OpenSSL functions. To remediate this vulnerability, it is recommended to update to the latest version of OpenSSL that includes the fix for CVE-2023-3446. The danger this vulnerability poses to organizations lies in the risk of service disruption due to prolonged computation times for DH key checks.

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