Microsoft Windows Digital Rights Management drmstor.dll storelicense memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Windows Digital Rights Management. This impacts the function storelicense in the library drmstor.dll. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2006-5448. There is no exploit available.

Detailsinfo

A vulnerability has been found in Microsoft Windows Digital Rights Management (Operating System) (version now known) and classified as critical. Affected by this vulnerability is the function storelicense in the library drmstor.dll. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The drmstor.dll ActiveX object in Microsoft Windows Digital Rights Management System (DRM) allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long parameter to the StoreLicense function, which triggers "memory corruption" and possibly a buffer overflow.

The weakness was shared 10/23/2006 as not defined posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2006-5448 since 10/23/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 04/25/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows Digital Rights Management

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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