Microsoft Internet Explorer 6/7/8 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Internet Explorer 6/7/8. It has been classified as critical. The affected element is an unknown function. This manipulation causes memory corruption. This vulnerability is registered as CVE-2014-0303. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 6/7/8 (Web Browser). It has been declared as critical. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2014-0302.

The issue has been introduced in 03/22/2001. The weakness was published 03/11/2014 by Bo Qu with Palo Alto Networks as MS14-012 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The public release has been coordinated with Microsoft. This vulnerability is known as CVE-2014-0303 since 12/03/2013. 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. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4737 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 72930 (MS14-012: Cumulative Security Update for Internet Explorer (2925418)), 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 100180 (Microsoft Internet Explorer Multiple Remote Code Execution Vulnerabilities (MS14-012)).

Applying the patch MS14-012 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 13685.

The vulnerability is also documented in the databases at X-Force (91380), Tenable (72930), SecurityFocus (BID 66028†) and Vulnerability Center (SBV-43562†). Additional details are provided at zdnet.com. Similar entries are available at VDB-12320, VDB-12526, VDB-12527 and VDB-12528. Be aware that VulDB is the high quality source 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: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

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Nessus ID: 72930
Nessus Name: MS14-012: Cumulative Security Update for Internet Explorer (2925418)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: MS14-012
TippingPoint: 🔍

McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
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Timelineinfo

03/22/2001 🔍
12/03/2013 +4639 days 🔍
03/11/2014 +98 days 🔍
03/11/2014 +0 days 🔍
03/11/2014 +0 days 🔍
03/11/2014 +0 days 🔍
03/12/2014 +1 days 🔍
03/12/2014 +0 days 🔍
03/12/2014 +0 days 🔍
05/07/2026 +4439 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS14-012
Researcher: Bo Qu
Organization: Palo Alto Networks
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2014-0303 (🔍)
GCVE (CVE): GCVE-0-2014-0303
GCVE (VulDB): GCVE-100-12535

OVAL: 🔍
IAVM: 🔍

X-Force: 91380 - Microsoft Internet Explorer code execution, High Risk
SecurityFocus: 66028 - Microsoft Internet Explorer CVE-2014-0303 Memory Corruption Vulnerability
Vulnerability Center: 43562 - [MS14-012] Microsoft Internet Explorer 6 - 8 Remote Code Execution or DoS due to Memory Corruption (CVE-2014-0303), Critical

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

Created: 03/12/2014 14:55
Updated: 05/07/2026 20:11
Changes: 03/12/2014 14:55 (83), 04/07/2017 12:04 (6), 06/15/2021 12:24 (3), 05/07/2026 20:11 (17)
Complete: 🔍
Cache ID: 216::103

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