Information Exposure Affecting matrixssl package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1404-MATRIXSSL-267286
- published13 Jan 2017
- disclosed13 Jan 2017
Introduced: 13 Jan 2017
CVE-2016-8671 (opens in a new tab)How to fix?
There is no fixed version for Ubuntu:14.04 matrixssl.
NVD Description
Note: Versions mentioned in the description apply only to the upstream matrixssl package and not the matrixssl package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8671
- https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671,-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