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cve[email protected]CVE-2010-4255
HistoryJan 25, 2011 - 1:00 a.m.

CVE-2010-4255

2011-01-2501:00:01
[email protected]
web.nvd.nist.gov
22
xen
fixup_page_fault
denial of service
vulnerability
nvd
cve-2010-4255

6.1 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

5.2 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.4%

JSON

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.

Affected configurations

NVD
Node
citrixxenRange≤4.0.1
OR
citrixxenMatch3.0.2
OR
citrixxenMatch3.0.3
OR
citrixxenMatch3.0.4
OR
citrixxenMatch3.1.2
OR
citrixxenMatch3.1.3
OR
citrixxenMatch3.1.4
OR
citrixxenMatch3.2.0
OR
citrixxenMatch3.2.1
OR
citrixxenMatch3.2.2
OR
citrixxenMatch3.2.3
OR
citrixxenMatch3.3.0
OR
citrixxenMatch3.3.1
OR
citrixxenMatch3.3.2
OR
citrixxenMatch3.4.0
OR
citrixxenMatch3.4.1
OR
citrixxenMatch3.4.2
OR
citrixxenMatch3.4.3
OR
citrixxenMatch4.0.0

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6.1 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

5.2 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.4%

JSON
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