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.
Vulnerability category: Information leak
Exploit prediction scoring system (EPSS) score for CVE-2016-8671
Probability of exploitation activity in the next 30 days: 0.27%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 64 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-8671
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST |
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2016-8671
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The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-8671
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http://www.openwall.com/lists/oss-security/2016/10/15/8
oss-security - Re: Update on MatrixSSL miscalculation (incomplete fix for CVE-2016-6887)Mailing List;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2016/10/15/2
oss-security - Update on MatrixSSL miscalculation (incomplete fix for CVE-2016-6887)Mailing List;Third Party Advisory
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https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671,-incomplete-fix-for-CVE-2016-6887.html
Update on MatrixSSL miscalculation (CVE-2016-8671, incomplete fix for CVE-2016-6887) | The Fuzzing ProjectThird Party Advisory
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http://www.securityfocus.com/bid/95439
MatrixSSL Incomplete Fix CVE-2016-8671 Memory Corruption Vulnerability
Products affected by CVE-2016-8671
- cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*