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.

• CWE-416

• http://www.securityfocus.com/bid/93498Third Party Advisory, VDB Entry
• http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices/Technical Description, Third Party Advisory
• https://github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.mdPatch, Release Notes, Third Party Advisory
• https://www.kb.cert.org/vuls/id/396440Third Party Advisory, US Government Resource
• http://www.securityfocus.com/bid/93498Third Party Advisory, VDB Entry
• http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices/Technical Description, Third Party Advisory
• https://github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.mdPatch, Release Notes, Third Party Advisory
• https://www.kb.cert.org/vuls/id/396440Third Party Advisory, US Government Resource

Published

Jan 5, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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