CVE-2023-6935
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-6935
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6935.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-6935
- Related
- Published
- 2024-02-09T23:15:08Z
- Modified
- 2025-02-19T03:37:43.306370Z
- 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
- [none]
- 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.
- References
Affected packages
Debian:11 / wolfssl
Package
- Name
- wolfssl
- Purl
- pkg:deb/debian/wolfssl?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
4.*
5.*
Debian:12 / wolfssl
Package
- Name
- wolfssl
- Purl
- pkg:deb/debian/wolfssl?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Debian:13 / wolfssl
Package
- Name
- wolfssl
- Purl
- pkg:deb/debian/wolfssl?arch=source