# MA-352.072013: MyCERT Alert - Microsoft Security Bulletin Summary For July 2013

**Date:** 10 Jul 2013  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-352.072013  
**Advisory ID:** MA-352.072013

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**1.0 Introduction**
Microsoft has released seven security bulletins for July 2013. Six of them are rated Critical and one of them is Important
**2.0 The list of the critical vulnerabilities are as below:**
> **2.1 Vulnerabilities in .NET Framework and Silverlight Could Allow Remote Code Execution**
>
> This security update resolves five privately reported vulnerabilities and two publicly disclosed vulnerabilities in Microsoft .NET Framework and Microsoft Silverlight. The most severe of these vulnerabilities could allow remote code execution if a trusted application uses a particular pattern of code. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on 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.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-052>
>
> **2.2 Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution**
>
> This security update resolves two publicly disclosed and six privately reported vulnerabilities in Microsoft Windows. The most severe vulnerability could allow remote code execution if a user views shared content that embeds TrueType font files. An attacker who successfully exploited this vulnerability could take complete control of an affected system.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-053>
>
> **2.3 Vulnerability in GDI+ Could Allow Remote Code Execution**
>
> This security update resolves a privately reported vulnerability in Microsoft Windows, Microsoft Office, Microsoft Lync, and Microsoft Visual Studio. The vulnerability could allow remote code execution if a user views shared content that embeds TrueType font files.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-054>
>
> **2.4 Cumulative Security Update for Internet Explorer**
>
> This security update resolves seventeen 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 the most severe 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.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-055>
>
> **2.5 Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution**
>
> This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user opens a specially crafted image file. An attacker who successfully exploited this vulnerability could gain the same user rights as the local 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.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-056>
>
> **2.6 Vulnerability in Windows Media Format Runtime Could Allow Remote Code Execution**
>
> This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user opens a specially crafted media file. An attacker who successfully exploited this vulnerability could gain the same user rights as the local 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.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-057>
**3.0 The list of the Important vulnerabilitiy is as below:**
> **3.1 Vulnerability in Windows Defender Could Allow Elevation of Privilege**
>
> This security update resolves a privately reported vulnerability in Windows Defender for Windows 7 and Windows Defender when installed on Windows Server 2008 R2. The vulnerability could allow elevation of privilege due to the pathnames used by Windows Defender. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system. The attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attacker must have valid logon credentials to exploit this vulnerability. The vulnerability could not be exploited by anonymous users.
>
> Patch: <https://technet.microsoft.com/en-us/security/bulletin/ms13-058>
**4.0 Recommendation**
Users are recommended to perform the update immediately. All of the patches could be done almost automatically via the Windows Update application.
The how-to perform of the Windows Update is available at the following URL:
- [https://www.mycert.org.my/portal/articles-content?menu=b9f3fdda-c343-4cb4-99a7-a7506cfb13ba&id=62275f48-f209-4440-af1a-c5425c875fa4](https://www.mycert.org.my/portal/articles-content?menu=b9f3fdda-c343-4cb4-99a7-a7506cfb13ba&id=62275f48-f209-4440-af1a-c5425c875fa4
)
Generally, MyCERT advises the users of this software to be updated with the latest security announcements by the vendor.
For further enquiries, please contact MyCERT through the following channels:
E-mail : [[email protected]](/cdn-cgi/l/email-protection#7a1903181f084343433a1903181f08091f190f08130e03541703) or [[email protected]](/cdn-cgi/l/email-protection#aac7d3c9cfd8deeac7d3c9cfd8de84c5d8cd84c7d3)
Phone : 1-300-88-2999 (monitored during business hours)
Fax : +603 89453442
Handphone : +60 19 2665850 (24x7 call incident reporting)
SMS : CYBER999 REPORT EMAIL COMPLAINT to 15888
Business Hours : Mon - Fri 08:30 -17:30 MYT
Web: <https://www.mycert.org.my>
**5.0 References**
- <http://technet.microsoft.com/en-us/security/bulletin/ms13-jul>