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.
Published: 2011-01-25
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2010-4228 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.
History

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Citrix Xen
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T03:34:37.813Z

Reserved: 2010-11-16T00:00:00.000Z

Link: CVE-2010-4255

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2011-01-25T01:00:01.393

Modified: 2026-04-29T01:13:23.040

Link: CVE-2010-4255

cve-icon Redhat

Severity : Moderate

Publid Date: 2010-11-29T00:00:00Z

Links: CVE-2010-4255 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses