Windows Users Getting Bitten by Macrovision Zero Day

Microsoft is working with Macrovision to check out a flaw in a driver on Windows Server 2003 and Windows XP that's being exploited in the wild, according to a Microsoft special security advisory released after business hours on Nov. 5. The danger is complete system takeover. The vulnerability is in the Macrovision secdrv.sys driver on supported editions of Windows Server 2003 and Windows XP. The affected product is Macrovision SafeDisc, a copy-protection application written for Windows.

Microsoft said in security advisory 944653 that Vista is immune. FrSRT reported on Oct. 19 that the trouble is a memory corruption error in the Macrovision Security Driver when processing user-supplied data. The vulnerability can be used by local attackers to gain so-called Ring 0 privileges and take complete control of an affected system.

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