7.5
HIGH
CVE-2016-6891
MatrixSSL ASN.1 Bit Field Denial of Service Vulnerability
Description

MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted ASN.1 Bit Field primitive in an X.509 certificate.

INFO

Published Date :

Jan. 5, 2017, 10:59 p.m.

Last Modified :

Jan. 6, 2017, 3:14 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2016-6891 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Matrixssl matrixssl
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-6891.

URL Resource
http://www.securityfocus.com/bid/93498 Third 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.md Release Notes Patch Third Party Advisory
https://www.kb.cert.org/vuls/id/396440 Third Party Advisory US Government Resource

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-6891 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-6891 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 06, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.securityfocus.com/bid/93498 No Types Assigned http://www.securityfocus.com/bid/93498 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices/ No Types Assigned http://www.tripwire.com/state-of-security/security-data-protection/cyber-security/flawed-matrixssl-code-highlights-need-for-better-iot-update-practices/ Third Party Advisory, Technical Description
    Changed Reference Type https://www.kb.cert.org/vuls/id/396440 No Types Assigned https://www.kb.cert.org/vuls/id/396440 Third Party Advisory, US Government Resource
    Changed Reference Type https://github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.md No Types Assigned https://github.com/matrixssl/matrixssl/blob/3-8-6-open/CHANGES.md Release Notes, Third Party Advisory, Patch
    Added CWE CWE-125
    Added CPE Configuration OR *cpe:2.3:a:matrixssl:matrixssl:3.8.5:*:*:*:*:*:*:* (and previous)
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-6891 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2016-6891 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.42 }} 0.00%

score

0.70194

percentile

CVSS30 - Vulnerability Scoring System
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