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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2023-6935

Change History

New CVE Received by NIST 2/09/2024 6:15:08 PM

Action Type Old Value New Value
Added CVSS V3.1 

								
							
							
								
							
						
								
							
								
wolfSSL Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

								
								
					

					

						Added
						CWE
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
wolfSSL Inc. CWE-203

								
								
					

					

						Added
						Description
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
wolfSSL 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.


								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
wolfSSL Inc. https://people.redhat.com/~hkario/marvin/ [No types assigned]

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
wolfSSL Inc. https://www.wolfssl.com/docs/security-vulnerabilities/ [No types assigned]