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Vulnerability Note VU#950516Microsoft COM+ contains a memory management flawOverviewMicrosoft COM+ contains a vulnerability due to a memory management flaw that may allow an attacker to take complete control of an affected system.I. DescriptionMicrosoft gives the following definition of COM+:COM+ is the next step in the evolution of the Microsoft Component Object Model and Microsoft Transaction Server (MTS). COM+ handles resource management tasks, such as thread allocation and security. It automatically makes applications more scalable by providing thread pooling, object pooling, and just-in-time object activation. COM+ also helps protect the integrity of data by providing transaction support even if a transaction spans multiple databases over a network. For information about COM+, visit the following Microsoft Web site. Note that Windows 2000 and Windows XP SP1 systems are primarily at risk. Windows XP SP2 and Windows Server 2003 (including SP1) are only vulnerable to a local, authenticated attacker exploiting this flaw. This vulnerability is being actively exploited. II. ImpactA remote, unauthenticated attacker may be able to execute arbitrary code and take complete control of an affected system.III. SolutionApply an updatePlease see Microsoft Security Bulletin MS05-051 for more information.
Referenceshttp://www.us-cert.gov/cas/techalerts/TA05-284A.html Microsoft reported this vulnerability, and in turn thank Cesar Cerrudo of Argeniss for information on the issue. This document was written by Ken MacInnis.
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