Microsoft Internet Explorer 11 MSHTML Convert­Bitmapto­Png input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Internet Explorer 11 and classified as critical. This issue affects the function CPaste­Command::Convert­Bitmapto­Png of the component MSHTML. This manipulation causes input validation. The identification of this vulnerability is CVE-2014-4138. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Microsoft Internet Explorer 11 (Web Browser) and classified as critical. Affected by this vulnerability is the function CPaste­Command::Convert­Bitmapto­Png of the component MSHTML. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability.

The issue has been introduced in 06/26/2013. The weakness was shared 10/14/2014 by SkyLined with Zero Day Initiative as MS14-056 as confirmed bulletin (Technet) via ZDI (Zero Day Initiative). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2014-4138 since 06/12/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known.

A public exploit has been developed by Skylined and been published 3 years after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 475 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 78431 (MS14-056: Cumulative Security Update for Internet Explorer (2987107)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100212 (Microsoft Internet Explorer Cumulative Security Update (MS14-056)).

Applying the patch MS14-056 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16449.

The vulnerability is also documented in the databases at X-Force (96739), Exploit-DB (40960), Tenable (78431), SecurityFocus (BID 70340†) and Secunia (SA60968†). Additional details are provided at krebsonsecurity.com. The entries VDB-67832, VDB-67831, VDB-67806 and VDB-67811 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

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CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Skylined
Download: 🔍

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Nessus ID: 78431
Nessus Name: MS14-056: Cumulative Security Update for Internet Explorer (2987107)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: MS14-056
TippingPoint: 🔍

McAfee IPS: 🔍
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Fortigate IPS: 🔍

Timelineinfo

06/26/2013 🔍
06/12/2014 +351 days 🔍
10/14/2014 +124 days 🔍
10/14/2014 +0 days 🔍
10/14/2014 +0 days 🔍
10/14/2014 +0 days 🔍
10/14/2014 +0 days 🔍
10/15/2014 +1 days 🔍
10/15/2014 +0 days 🔍
12/22/2016 +799 days 🔍
12/22/2016 +0 days 🔍
07/19/2025 +3131 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS14-056
Researcher: SkyLined
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2014-4138 (🔍)
GCVE (CVE): GCVE-0-2014-4138
GCVE (VulDB): GCVE-100-67819

OVAL: 🔍
IAVM: 🔍

X-Force: 96739
SecurityFocus: 70340 - Microsoft Internet Explorer CVE-2014-4138 Remote Memory Corruption Vulnerability
Secunia: 60968
SecurityTracker: 1031018 - Microsoft Internet Explorer Mulitple Flaws Let Remote Users Execute Arbitrary Code and Bypass the ASLR Security Feature
Vulnerability Center: 46449 - [MS14-056] Internet Explorer 11 Remote Host Privilege due to Memory Corruption - CVE-2014-4138, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
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Entryinfo

Created: 10/15/2014 11:22
Updated: 07/19/2025 21:56
Changes: 10/15/2014 11:22 (80), 04/07/2017 12:11 (19), 02/22/2022 02:41 (3), 02/22/2022 02:48 (1), 07/19/2025 21:56 (14)
Complete: 🔍
Cache ID: 216:D31:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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