CVE-2016-6886

moderate-risk
Published 2017-01-13

The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.

Do I need to act?

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0.81% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Matrixssl

References (6)

Patch http://www.matrixssl.org/blog/releases/matrixssl_3_8_4
http://www.securityfocus.com/bid/92604
Third Party Advisory https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more...
Patch http://www.matrixssl.org/blog/releases/matrixssl_3_8_4
http://www.securityfocus.com/bid/92604
Third Party Advisory https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more...
34
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal