Microsoft has released out-of-band updates to address a critical use-after-free vulnerability in Internet Explorer versions 6 through 11, including IE versions running on Windows XP.
According to the United States Computer Emergency Readiness Team, their organization’s goal is toward a safer, “stronger Internet for all Americans by responding to major incidents, analyzing threats, and exchanging critical cybersecurity information with trusted partners around the world” (US-CERT, 2014). US-CERT is part of the Department of Homeland Security’s National Cybersecurity and Communications Integration Center (NCCIC). US-CERT coordinates the sharing of cyber information and proactively address the nation’s cyber risks while protecting the constitutional rights of Americans.
Please read the following updates and the following links.
Security Update for Internet Explorer (2965111) Published: May 1, 2014
“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.
This security update is rated Critical for Internet Explorer 6 (IE 6), Internet Explorer 7 (IE 7), Internet Explorer 8 (IE 8), Internet Explorer 9 (IE 9), Internet Explorer 10 (IE 10), and Internet Explorer 11 (IE 11) on affected Windows clients, and Moderate for Internet Explorer 6 (IE 6), Internet Explorer 7 (IE 7), Internet Explorer 8 (IE 8), Internet Explorer 9 (IE 9), Internet Explorer 10 (IE 10), and Internet Explorer 11 (IE 11) on affected Windows servers. For more information, see the subsection,
Affected and Non-Affected Software, in this section.
The security update addresses the vulnerability by modifying the way that Internet Explorer handles objects in memory. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry later in this bulletin.
This security update addresses the vulnerability first described in Microsoft Security Advisory 2963983.
- Most customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871. For Customers who do not have automatic updating enabled, the steps in Turn automatic updating on or off can be used to enable automatic updating.
- For administrators and enterprise installations, or end users who want to install this security update manually (including customers who have not enabled automatic updating), Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service. The updates are also available via the download links in the Affected Software table later in this bulletin”.
Affected and Non Affected Software Link to the table: https://technet.microsoft.com/library/security/ms14-021#ID0E1OAE
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United States Computer Emergency Readiness Team. (2014). Microsoft releases security update for internet exploere use-after-free vulnerability. Retrieved from ttps://www.us-cert.gov/ncas/current-activity/2014/05/01/Microsoft-Releases-Security-Update-Internet-Explorer-Use-After-Free
Microsoft. (2014). Microsoft security bulletin MS14-021: Security update for Internet Explorer. Retrieved from https://technet.microsoft.com/library/security/ms14-021
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