CVE-2010-4255

MediumCVSS 6.1/10Last modified Jun 16, 2026

Description

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.

Metrics

CVSS 2.0 6.1/10AV:A/AC:L/Au:N/C:N/I:N/A:C

Affected software

No affected versions have been published.

Timeline

Published: Jan 25, 2011
Last modified: Jun 16, 2026
NVD status: Modified

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