Executive Summary

Summary
TitleSecurity Update for Internet Explorer
Informations
NameMS14-021First vendor Publication2014-05-01
VendorMicrosoftLast vendor Modification2014-05-01
Severity (Vendor) VersionRevision1.1

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score10Attack RangeNetwork
Cvss Impact Score10Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Severity Rating: Critical
Revision Note: V1.1 (May 1, 2014): Bulletin revised to specify that the latest cumulative security update for Internet Explorer must be installed prior to installing MS14-021. See the Update FAQ for details.
Summary: This security update resolves a publicly disclosed vulnerability in Internet Explorer. The vulnerability could allow remote code execution if a user views a specially crafted webpage using an affected version of Internet Explorer. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Original Source

Url : https://technet.microsoft.com/en-us/library/security/MS14-021

CWE : Common Weakness Enumeration

%idName
100 %CWE-416Use After Free

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:24704
 
Oval ID: oval:org.mitre.oval:def:24704
Title: Internet Explorer Memory corruption vulnerability (CVE-2014-1776) - MS14-021
Description: Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."
Family: windows Class: vulnerability
Reference(s): CVE-2014-1776
Version: 6
Platform(s): Microsoft Windows XP
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows 8.1
Product(s): Microsoft Internet Explorer 6
Microsoft Internet Explorer 7
Microsoft Internet Explorer 8
Microsoft Internet Explorer 9
Microsoft Internet Explorer 10
Microsoft Internet Explorer 11
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application6

Information Assurance Vulnerability Management (IAVM)

DateDescription
2014-05-01IAVM : 2014-A-0065 - Microsoft Internet Explorer Memory Corruption Vulnerability
Severity : Category I - VMSKEY : V0050205

Snort® IPS/IDS

DateDescription
2019-05-26Microsoft Internet Explorer VML use after free attempt
RuleID : 49940 - Revision : 2 - Type : BROWSER-IE
2014-12-02Microsoft Internet Explorer VML use after free attempt
RuleID : 32363 - Revision : 3 - Type : BROWSER-IE
2014-12-02Microsoft Internet Explorer VML use after free attempt
RuleID : 32362 - Revision : 3 - Type : BROWSER-IE
2014-06-07known malicious flash actionscript decryption routine
RuleID : 30901 - Revision : 3 - Type : FILE-FLASH
2014-05-31Microsoft Internet Explorer VML use after free attempt
RuleID : 30895 - Revision : 4 - Type : BROWSER-IE
2014-05-31Microsoft Internet Explorer VML use after free attempt
RuleID : 30894 - Revision : 4 - Type : BROWSER-IE
2014-05-31Microsoft Internet Explorer VML use after free attempt
RuleID : 30893 - Revision : 3 - Type : BROWSER-IE
2014-05-31Microsoft Internet Explorer VML use after free attempt
RuleID : 30892 - Revision : 3 - Type : BROWSER-IE
2014-05-28Microsoft Internet Explorer VML use after free attempt
RuleID : 30803 - Revision : 6 - Type : BROWSER-IE
2014-05-28Microsoft Internet Explorer VML use after free attempt
RuleID : 30794 - Revision : 6 - Type : BROWSER-IE

Nessus® Vulnerability Scanner

DateDescription
2014-05-01Name : The remote host has a web browser that is affected by a memory corruption vul...
File : smb_nt_ms14-021.nasl - Type : ACT_GATHER_INFO
2014-04-28Name : The remote host is affected by a remote code execution vulnerability.
File : smb_kb2963983.nasl - Type : ACT_GATHER_INFO

Alert History

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DateInformations
2016-04-27 02:04:24
  • Multiple Updates
2014-12-02 21:25:52
  • Multiple Updates
2014-06-07 21:22:29
  • Multiple Updates
2014-06-05 21:22:35
  • Multiple Updates
2014-05-22 05:25:14
  • Multiple Updates
2014-05-22 05:17:49
  • Multiple Updates
2014-05-09 17:22:32
  • Multiple Updates
2014-05-06 11:35:14
  • Multiple Updates
2014-05-06 11:30:27
  • First insertion