Information disclosure in Matrixssl

CVE-2016-8671

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.

Vulnerability class: Information Disclosure

EPSS: 0.013 (68.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-8671?
CVE-2016-8671 is a medium-severity vulnerability in Matrixssl, classified under Information Disclosure. CVSS score: 5.9/10. Published 2017-01-13.
How severe is CVE-2016-8671?
Medium severity. CVSS v3 base score is 5.9 out of 10.