Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2017-01-13T16:59:00.620

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	matrixssl	matrixssl	≤ 3.8.6	Yes

References

http://www.openwall.com/lists/oss-security/2016/10/15/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/10/15/8 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/95439 ([email protected])
https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671%2C-incomplete-fix-for-CVE-2016-6887.html ([email protected])
http://www.openwall.com/lists/oss-security/2016/10/15/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/10/15/8 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/95439 (af854a3a-2127-422b-91ae-364da2661108)
https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671%2C-incomplete-fix-for-CVE-2016-6887.html (af854a3a-2127-422b-91ae-364da2661108)