CVE-2015-7835

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Summary

CVECVE-2015-7835
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-10-30 15:59:04 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

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

Problem Types: CWE-20 | CWE-264 | n/a

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen 3.4.0 All All All
Operating System Xen Xen 3.4.1 All All All
Operating System Xen Xen 3.4.2 All All All
Operating System Xen Xen 3.4.3 All All All
Operating System Xen Xen 3.4.4 All All All
Operating System Xen Xen 4.0.0 All All All
Operating System Xen Xen 4.0.1 All All All
Operating System Xen Xen 4.0.2 All All All
Operating System Xen Xen 4.0.3 All All All
Operating System Xen Xen 4.0.4 All All All
Operating System Xen Xen 4.1.0 All All All
Operating System Xen Xen 4.1.1 All All All
Operating System Xen Xen 4.1.2 All All All
Operating System Xen Xen 4.1.3 All All All
Operating System Xen Xen 4.1.4 All All All
Operating System Xen Xen 4.1.5 All All All
Operating System Xen Xen 4.1.6.1 All All All
Operating System Xen Xen 4.2.0 All All All
Operating System Xen Xen 4.2.1 All All All
Operating System Xen Xen 4.2.2 All All All
Operating System Xen Xen 4.2.3 All All All
Operating System Xen Xen 4.3.0 All All All
Operating System Xen Xen 4.3.1 All All All
Operating System Xen Xen 4.3.2 All All All
Operating System Xen Xen 4.3.4 All All All
Operating System Xen Xen 4.4.0 All All All
Operating System Xen Xen 4.4.1 - All All
Operating System Xen Xen 4.5.0 All All All
Operating System Xen Xen 4.5.1 All All All
Operating System Xen Xen 4.6.0 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
[SECURITY] Fedora 21 Update: xen-4.4.3-7.fc21 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Xen CVE-2015-7835 Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Xen Page Table Validation Bypass Lets Local Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
openSUSE-SU-2015:2250-1: moderate: Security update for xen af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[SECURITY] Fedora 22 Update: xen-4.5.1-14.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 23 Update: xen-4.5.1-14.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
404 - Page not found af854a3a-2127-422b-91ae-364da2661108 support.citrix.com
XSA-148 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Vendor Advisory
Debian -- Security Information -- DSA-3390-1 xen af854a3a-2127-422b-91ae-364da2661108 www.debian.org
qubes-secpack/qsb-022-2015.txt at master · QubesOS/qubes-secpack · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Vendor Advisory
Xen: Multiple vulnerabilities (GLSA 201604-03) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
openSUSE-SU-2015:1965-1: moderate: Security update for xen af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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