National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2015-7835 Detail


The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

Source:  MITRE      Last Modified:  10/30/2015

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.2 HIGH
(AV:L/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name External Source FEDORA FEDORA-2015-a931b02be2 External Source FEDORA FEDORA-2015-6f6b79efe2 External Source FEDORA FEDORA-2015-242be2c240 External Source SUSE openSUSE-SU-2015:1965 External Source SUSE openSUSE-SU-2015:2250 External Source CONFIRM External Source DEBIAN DSA-3390 External Source BID 77366 External Source SECTRACK 1034032 Vendor Advisory External Source CONFIRM Vendor Advisory External Source MISC External Source GENTOO GLSA-201604-03

Technical Details

Vulnerability Type (View All)

  • Input Validation (CWE-20)
  • Permissions, Privileges, and Access Control (CWE-264)

Change History 5 change records found - show changes