High severity · published Jan 5, 2017
CVE-2016-6892
The x509FreeExtensions function in MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (free of unallocated memory) via a crafted X.509 certificate
7.5
CVSS
1.9%
EPSS
No
On KEV
Description
The x509FreeExtensions function in MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (free of unallocated memory) via a crafted X.509 certificate.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Matrixssl · Matrixssl
through 3.8.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6892
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6892
Third Party Advisory
http://www.securityfocus.com/bid/93498
Technical Description
http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices/
Patch
https://github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.md
Third Party Advisory
https://www.kb.cert.org/vuls/id/396440
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