libEBML up to 1.3.2 ReadCodedSizeValue information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in libEBML up to 1.3.2. It has been classified as problematic. Affected by this vulnerability is the function EbmlElement::ReadCodedSizeValue. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2015-8791. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in libEBML up to 1.3.2. It has been rated as problematic. This issue affects the function EbmlElement::ReadCodedSizeValue. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted length value in an EBML id, which triggers an invalid memory access.

The weakness was shared 01/29/2016 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2015-8791 since 01/29/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 88999 (Debian DLA-438-1 : libebml security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175694 (Debian Security Update for libebml (DSA 3538-1)).

Upgrading to version 1.3.3 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (88999). The entries VDB-80727 and VDB-80728 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88999
Nessus Name: Debian DLA-438-1 : libebml security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703538
OpenVAS Name: Debian Security Advisory DSA 3538-1 (libebml - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: libEBML 1.3.3
Patch: github.com

Timelineinfo

01/29/2016 🔍
01/29/2016 +0 days 🔍
01/29/2016 +0 days 🔍
02/01/2016 +3 days 🔍
02/28/2016 +27 days 🔍
02/29/2016 +1 days 🔍
07/06/2022 +2319 days 🔍

Sourcesinfo

Advisory: 24e5cd7c666b1ddd85619d60486db0a5481c1b90
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8791 (🔍)
GCVE (CVE): GCVE-0-2015-8791
GCVE (VulDB): GCVE-100-80729

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 02/01/2016 10:41
Updated: 07/06/2022 15:05
Changes: 02/01/2016 10:41 (53), 07/11/2018 04:10 (22), 07/06/2022 15:05 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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