CVE-2023-6935 DetailDescriptionwolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed. Metrics
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CVSS 4.0 Severity and Vector Strings:
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Weakness Enumeration
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Denotes Vulnerable Software Quick InfoCVE Dictionary Entry:CVE-2023-6935 NVD Published Date: 02/09/2024 NVD Last Modified: 11/07/2024 Source: wolfSSL Inc. |