Microsoft Security Bulletins For June 2012 Released

Microsoft a few minutes ago has enabled the security updates for June 2012 which Windows users can now downloaded via the operating system's Windows Update feature. A total of seven different bulletins have been released which address issues in Windows, Microsoft Internet Explorer, and the .NET Framework.

Three of the seven bulletins have received a maximum severity rating of critical, the highest rating possible, while the remaining four one of important. This means that at least one product is critically affected by the vulnerabilities that it fixes.

Take a look at the Bulletin Deployment Priorities, and the Severity and Exploitability Index below. The first is a suggestion by Microsoft on how the bulletins should be deployed on affected systems, the second a visual representation of the risk and impact of each individual bulletin.

Microsoft Security Bulletins For June 2012

Here is a list of all bulletins and their description.

• MS12-036 - Vulnerability in Remote Desktop Could Allow Remote Code Execution (2685939) - This security update resolves a privately reported vulnerability in the Remote Desktop Protocol. The vulnerability could allow remote code execution if an attacker sends a sequence of specially crafted RDP packets to an affected system. By default, the Remote Desktop Protocol (RDP) is not enabled on any Windows operating system. Systems that do not have RDP enabled are not at risk.
• MS12-037 - Cumulative Security Update for Internet Explorer (2699988) - This security update resolves one publicly disclosed and twelve privately reported vulnerabilities in Internet Explorer. The most severe vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited any of these vulnerabilities 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.
• MS12-038 - Vulnerability in .NET Framework Could Allow Remote Code Execution (2706726) - This security update resolves one privately reported vulnerability in Microsoft .NET Framework. The vulnerability could allow remote code execution on a client system if a user views a specially crafted webpage using a web browser that can run XAML Browser Applications (XBAPs). 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. The vulnerability could also be used by Windows .NET applications to bypass Code Access Security (CAS) restrictions. In a web browsing attack scenario, an attacker could host a website that contains a webpage that is used to exploit this vulnerability. In addition, compromised websites and websites that accept or host user-provided content or advertisements could contain specially crafted content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these websites. Instead, an attacker would have to convince users to visit the website, typically by getting them to click a link in an email message or Instant Messenger message that takes users to the attacker's website.
• MS12-039 - Vulnerabilities in Lync Could Allow Remote Code Execution (2707956) - This security update resolves one publicly disclosed vulnerability and three privately reported vulnerabilities in Microsoft Lync. The most severe vulnerabilities could allow remote code execution if a user views shared content that contains specially crafted TrueType fonts.
• MS12-040 - Vulnerability in Microsoft Dynamics AX Enterprise Portal Could Allow Elevation of Privilege (2709100) - This security update resolves one privately reported vulnerability in Microsoft Dynamics AX Enterprise Portal. The vulnerability could allow elevation of privilege if a user clicks a specially crafted URL or visits a specially crafted website. In an email attack scenario, an attacker could exploit the vulnerability by sending an email message that contains the specially crafted URL to the user of the targeted Microsoft Dynamics AX Enterprise Portal site and by convincing the user to click the specially crafted URL. Internet Explorer 8 and Internet Explorer 9 users browsing to a Microsoft Dynamics AX Enterprise Portal site in the Internet Zone are at a reduced risk. By default, the XSS Filter in Internet Explorer 8 and Internet Explorer 9 prevents this attack in the Internet Zone. However, the XSS Filter in Internet Explorer 8 and Internet Explorer 9 is not enabled by default in the Intranet Zone.
• MS12-041 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2709162) - This security update resolves five privately reported vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit any of these vulnerabilities.
• MS12-042 - Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2711167) - This security update resolves one privately reported vulnerability and one publicly disclosed vulnerability in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application that exploits the vulnerability. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.

Downloads

All security bulletins are already available via Windows Update. It may be necessary to click on the check for updates button in the interface to force the program to retrieve the new update information, as Windows is not checking all the time for new updates.

Updates, including the June 2012 security ISO image, will also be made available on Microsoft's Download Center. It usually takes some time before they are listed there though.

Additional information

You can follow the links above for detailed information about each of the bulletins that Microsoft has released in June 2012. If you need an executive's overview, try the June 2012 Bulletin Summary page instead, or the Microsoft Security Response Center blog post.