Intel releases Bios update

Intel releases Bios update

Summary: Following the disclosure of a high-privilege rootkit for the Xen hypervisor, Intel has patched the Bios for affected desktop and mobile motherboards

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TOPICS: Security
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Chip giant Intel has released an update to Basic Input Output Software (Bios) for its desktop and mobile motherboards.

Software running with kernel privileges can under certain circumstances change code running in System Management Mode, a privileged operating environment outside the control of the operating system, Intel warned in an advisory.

"Malicious software running in this environment could therefore perform any number of operations," Intel stated.

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Motherboards affected by the flaw are DQ35JO, DQ35MP, DP35DP, DG33FB, DG33BU, DG33TL, DX38BT and MGM965TW, a mobile board.

The patch was released in response to the discovery and subsequent Black Hat 2008 presentation of a high-privilege rootkit for the Xen hypervisor by security researchers Joanna Rutkowska and Rafal Wojtczuk.

Topic: Security

Tom Espiner

About Tom Espiner

Tom is a technology reporter for ZDNet.com. He covers the security beat, writing about everything from hacking and cybercrime to threats and mitigation. He also focuses on open source and emerging technologies, all the while trying to cut through greenwash.

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  • If you're looking for BIOS updates from other motherboard manufacturers, a good resource is http://www.wimsbios.com/biosupdates.jsp

    Wim
    wbervoets