CVE-2023-6935
- Source
- https://cve.org/CVERecord?id=CVE-2023-6935
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6935.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-6935
- Downstream
- Published
- 2024-02-09T22:25:04.663Z
- Modified
- 2026-05-28T04:09:46.102106903Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- Marvin Attack vulnerability in SP Math All RSA
- Details
-
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="-DWOLFSSLSTATICRSA"
The define “WOLFSSLSTATICRSA” 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.
- Database specific
{ "cwe_ids": [ "CWE-203" ], "cna_assigner": "wolfSSL", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6935.json" }- References