Vulnerability Monitor

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CVE-2010-4255

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

2011-01-25T01:00:01.393

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.1 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

6.9

Weaknesses
  • Type: Primary
    NVD-CWE-Other
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application citrix xen ≤ 4.0.1 Yes
Application citrix xen 3.0.2 Yes
Application citrix xen 3.0.3 Yes
Application citrix xen 3.0.4 Yes
Application citrix xen 3.1.2 Yes
Application citrix xen 3.1.3 Yes
Application citrix xen 3.1.4 Yes
Application citrix xen 3.2.0 Yes
Application citrix xen 3.2.1 Yes
Application citrix xen 3.2.2 Yes
Application citrix xen 3.2.3 Yes
Application citrix xen 3.3.0 Yes
Application citrix xen 3.3.1 Yes
Application citrix xen 3.3.2 Yes
Application citrix xen 3.4.0 Yes
Application citrix xen 3.4.1 Yes
Application citrix xen 3.4.2 Yes
Application citrix xen 3.4.3 Yes
Application citrix xen 4.0.0 Yes
References