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Case File

CVE-2010-4255

MEDIUM · CVSS 6.1 EPSS 0.76%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-01-25 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.1. It may lead to a denial-of-service condition.

CVE
CVE-2010-4255
Severity
MEDIUM
CVSS
6.1
EPSS
0.76%

Original NVD 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.