CVE-2023-6935

CVSS 3.1 Score 5.9 of 10 (medium)

Details

Published Feb 9, 2024
Updated: Feb 11, 2024
CWE ID 203

Summary

CVE-2023-6935 is a vulnerability that affects the wolfSSL SP Math All RSA implementation when built with specific options. The vulnerability, known as the Marvin Attack, is a timing Bleichenbacher style attack and can be exploited by an attacker to decrypt ciphertexts and forge signatures. However, it does not expose the server's private key. This vulnerability is specific to static RSA cipher suites and affects wolfSSL versions prior to 3.6.6. To remediate this vulnerability, it is recommended to disable the use of static RSA cipher suites or update to wolfSSL version 3.6.6 or later. The potential danger of this vulnerability lies in the possibility of unauthorized access to sensitive information due to the decryption and signature forging capabilities it provides to attackers.

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