Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 58.2%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 4.3
References
- http://www.openwall.com/lists/oss-security/2016/10/15/2
- http://www.openwall.com/lists/oss-security/2016/10/15/8
- http://www.securityfocus.com/bid/95439
- https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671%2C-incomplete-fix-for-CVE-2016-6887.html
- http://www.openwall.com/lists/oss-security/2016/10/15/2
- http://www.openwall.com/lists/oss-security/2016/10/15/8
- http://www.securityfocus.com/bid/95439
- https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671%2C-incomplete-fix-for-CVE-2016-6887.html
Products affected by CVE-2016-8671
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cpe:2.3:a:matrixssl:matrixssl:-
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cpe:2.3:a:matrixssl:matrixssl:3.8.2
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cpe:2.3:a:matrixssl:matrixssl:3.8.3
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cpe:2.3:a:matrixssl:matrixssl:3.8.4
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cpe:2.3:a:matrixssl:matrixssl:3.8.5
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cpe:2.3:a:matrixssl:matrixssl:3.8.6