libEBML Unicode String numeric error

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in libEBML. It has been rated as problematic. This affects an unknown part of the component Unicode String Handler. This manipulation causes numeric error. This vulnerability appears as CVE-2016-1514. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in libEBML (version unknown) and classified as problematic. Affected by this vulnerability is an unknown function of the component Unicode String Handler. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality. The summary by CVE is:

A specially crafted unicode string in libebml master branch can cause an off-by-few read on the heap in unicode string parsing code in libebml. This issue can potentially be used for information leaks.

The bug was discovered 01/28/2016. The weakness was presented 01/06/2017 by Aleksandar Nikolic with Cisco Talos (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2016-1514 since 01/07/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 146 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 91772 (openSUSE Security Update : vlc (openSUSE-2016-754)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168929 (OpenSuSE Security Update for vlc (openSUSE-SU-2016:1652-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91772) and SecurityFocus (BID 95124†). See VDB-79206, VDB-80545, VDB-81426 and VDB-81472 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 91772
Nessus Name: openSUSE Security Update : vlc (openSUSE-2016-754)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54470
OpenVAS Name: SuSE Update for vlc openSUSE-SU-2016:1652-1 (vlc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2016 🔍
01/28/2016 +21 days 🔍
01/28/2016 +0 days 🔍
06/22/2016 +146 days 🔍
06/23/2016 +1 days 🔍
01/06/2017 +197 days 🔍
01/07/2017 +1 days 🔍
10/27/2022 +2119 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Aleksandar Nikolic
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2016-1514 (🔍)
GCVE (CVE): GCVE-0-2016-1514
GCVE (VulDB): GCVE-100-95053
SecurityFocus: 95124 - Matroska libEBML CVE-2016-1514 Information Disclosure Vulnerability
OSVDB: - CVE-2016-1514 - libebml - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 01/07/2017 12:48
Updated: 10/27/2022 16:47
Changes: 01/07/2017 12:48 (43), 07/15/2020 12:17 (20), 10/27/2022 16:47 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!