CVE-2023-6935 — wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new v

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:

01What is this vulnerability?

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:

02Affected products

Vendor	Product	Versions
wolfSSL	wolfSSL	3.12.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-02-09T22:25:04.663Z
• Last modified: 2024-08-02T08:42:08.533Z

09References

• people.redhat.com — https://people.redhat.com/~hkario/marvin/
• www.wolfssl.com — https://www.wolfssl.com/docs/security-vulnerabilities/