CVE-2010-4255

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Summary

CVECVE-2010-4255
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-01-25 01:00:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 6.1 from [email protected]

AV:A/AC:L/Au:N/C:N/I:N/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:A/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Citrix Xen 3.0.2 All All All
Application Citrix Xen 3.0.3 All All All
Application Citrix Xen 3.0.4 All All All
Application Citrix Xen 3.1.2 All All All
Application Citrix Xen 3.1.3 All All All
Application Citrix Xen 3.1.4 All All All
Application Citrix Xen 3.2.0 All All All
Application Citrix Xen 3.2.1 All All All
Application Citrix Xen 3.2.2 All All All
Application Citrix Xen 3.2.3 All All All
Application Citrix Xen 3.3.0 All All All
Application Citrix Xen 3.3.1 All All All
Application Citrix Xen 3.3.2 All All All
Application Citrix Xen 3.4.0 All All All
Application Citrix Xen 3.4.1 All All All
Application Citrix Xen 3.4.2 All All All
Application Citrix Xen 3.4.3 All All All
Application Citrix Xen 4.0.0 All All All
Application Citrix Xen All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - Re: CVE request: xen: x86-64: don't crash Xen upon direct pv guest access af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
658155 – (CVE-2010-4255) CVE-2010-4255 xen: 64-bit PV xen guest can crash host by accessing hypervisor per-domain memory area af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch
[Xen-devel] [PATCH] x86-64: don't crash Xen upon direct pv guest - Xen Source af854a3a-2127-422b-91ae-364da2661108 lists.xensource.com Patch
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
VMSA-2011-0012.2 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com
oss-security - CVE request: xen: x86-64: don't crash Xen upon direct pv guest access af854a3a-2127-422b-91ae-364da2661108 openwall.com Patch
Red Hat update for kernel - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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