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9.6
CRITICAL CVSS 3.0
CVE-2015-8789
EbmlMaster Use-After-Free Privilege Escalation
Description

Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3 allows context-dependent attackers to have unspecified impact via a "deeply nested element with infinite size" followed by another element of an upper level in an EBML document.

INFO

Published Date :

Jan. 29, 2016, 7:59 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2015-8789 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 Matroska libebml
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 CRITICAL [email protected]
Solution
A vulnerability in libebml allows for a use-after-free condition.
  • Update the libebml package.
  • Reboot the system if required.
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-2015-8789.

URL Resource
http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
http://www.debian.org/security/2016/dsa-3538
http://www.securityfocus.com/bid/94924
http://www.talosintelligence.com/reports/TALOS-2016-0037/
https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog Vendor Advisory
https://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24
http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
http://www.debian.org/security/2016/dsa-3538
http://www.securityfocus.com/bid/94924
http://www.talosintelligence.com/reports/TALOS-2016-0037/
https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog Vendor Advisory
https://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2015-8789 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-2015-8789 weaknesses.

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-2015-8789 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2015-8789 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
    Added Reference http://www.debian.org/security/2016/dsa-3538
    Added Reference http://www.securityfocus.com/bid/94924
    Added Reference http://www.talosintelligence.com/reports/TALOS-2016-0037/
    Added Reference https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
    Added Reference https://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jan. 20, 2017

    Action Type Old Value New Value
    Removed Reference http://www.talosintel.com/reports/TALOS-2016-0037/ [No Types Assigned]
    Added Reference http://www.talosintelligence.com/reports/TALOS-2016-0037/ [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/94924 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 03, 2016

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2016/dsa-3538 [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 09, 2016

    Action Type Old Value New Value
    Added Evaluator Description <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:matroska:libebml:1.3.2:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
    Changed Reference Type https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog No Types Assigned https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog Advisory
    Changed Reference Type http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html No Types Assigned http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html Advisory
    Added Reference http://www.talosintel.com/reports/TALOS-2016-0037/
    Added CWE NVD-CWE-Other
  • Initial Analysis by [email protected]

    Feb. 08, 2016

    Action Type Old Value New Value
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.
Vulnerability Scoring Details
Base CVSS Score: 9.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 9.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.38 }} 0.02%

score

0.58600

percentile