NuytsTech Security

CVE-2010-4255

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The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.

Date published : 2011-01-24

http://www.securityfocus.com/archive/1/520102/100/0/threaded

http://www.vmware.com/security/advisories/VMSA-2011-0012.html

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