CVE-2011-1166

Description

Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables.

CVSS Metrics

• v2.0•MEDIUM•Score: 5.5AV:A/AC:L/Au:S/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.10%• Percentile: 28%

Techniques & Countermeasures

• CWE-20•Improper Input Validation

  The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

• xen•xen

  ≤ 4.0.1 | 3.0.2 | 3.0.3 | 3.0.4 | 3.1.3 | 3.1.4 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.3.0 | 3.3.1 | 3.3.2 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 4.0.0

References (3)

• http://wiki.xen.org/wiki/Security_Announcements#XSA-1_Host_crash_due_to_failure_to_correctly_validate_PV_kernel_execution_state.
• http://rhn.redhat.com/errata/RHSA-2011-0833.html
• http://downloads.avaya.com/css/P8/documents/100145416