Microsoft Windows is an operating system produced by Microsoft. More information can be found at the following vendor's website:
Remote exploitation of a memory corruption vulnerability in Microsoft Corp.'s Windows DirectPlay could allow an attacker to execute arbitrary code with the privileges of the current user. The vulnerability occurs when instantiating the DirectPlay ActiveX control to determine if it can be loaded in Office. When this occurs, there is an error in instantiation that leads to a pointer being incorrectly freed. The result is that the control calls free (pointer + 8), which can lead to a memory corruption vulnerability.
Exploitation of this vulnerability results in the execution of arbitrary code with the privileges of the user opening the file. To exploit this vulnerability, an attacker needs to convince a user to open a malicious file. Attackers typically accomplish this by e-mailing a targeted user the file or hosting the file on a Web page.
The following Microsoft products are vulnerable:
If Office is the attack vector, it is possible (on Office 2007 and 2010) to use the Trust Center settings to block all ActiveX controls from loading. This will prevent exploitation of the vulnerability; however, it may affect the viewing of files that rely on the use of embedded controls.
Microsoft has released a fix which addresses this issue. For more information, consult their advisory at the following URL:
The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2012-1537 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.
08/01/2012 Initial Vendor Notification
08/01/2012 Initial Vendor Reply
12/11/2012 Coordinated Public Disclosure
This vulnerability was reported to iDefense by Aniway.Anyway@gmail.com.
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