CVE-2016-1570

HIGH

Xen 3.4.0-4.6.x - Info Disclosure, Privilege Escalation, DoS

Title source: llm
STIX 2.1

Description

The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1034744
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-167.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3519

Scores

CVSS v3 8.5
EPSS 0.0020
EPSS Percentile 42.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (29)
xen/xen 3.4.0
xen/xen 3.4.1
xen/xen 4.1.0
xen/xen 4.1.1
xen/xen 4.1.2
xen/xen 4.1.3
xen/xen 4.1.4
xen/xen 4.1.5
xen/xen 4.1.6
xen/xen 4.1.6.1
... and 19 more
Published Jan 22, 2016
Tracked Since Feb 18, 2026