Vulnerability Description
The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secret key via unspecified vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6887.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Matrixssl | Matrixssl | <= 3.8.6 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2016/10/15/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/15/8Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95439
- https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-
- http://www.openwall.com/lists/oss-security/2016/10/15/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/15/8Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95439
- https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-
FAQ
What is CVE-2016-8671?
CVE-2016-8671 is a vulnerability with a CVSS score of 5.9 (MEDIUM). The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secret key via unspecified vectors. NOTE: t...
How severe is CVE-2016-8671?
CVE-2016-8671 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-8671?
Check the references section above for vendor advisories and patch information. Affected products include: Matrixssl Matrixssl.