CVE-2016-6887

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9
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 a CRT attack.
Overview
  • CVE ID
  • CVE-2016-6887
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-01-13T16:59:00
  • Last Modified Date
  • 2017-01-19T02:59:03
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:* 1 OR 3.8.6
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html Third Party Advisory
http://www.matrixssl.org/blog/releases/matrixssl_3_8_4 Patch Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-6887
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6887
History
Created Old Value New Value Data Type Notes
2022-05-10 09:50:14 Added to TrackCVE
2022-12-02 12:54:54 2017-01-13T16:59Z 2017-01-13T16:59:00 CVE Published Date updated
2022-12-02 12:54:54 2017-01-19T02:59:03 CVE Modified Date updated
2022-12-02 12:54:54 Modified Vulnerability Status updated