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CVE-2016-1570

N/A

Published: January 22, 2016 at 03:00 PM UTC

Updated: June 17, 2026 at 12:42 AM UTC

1 product affected across 1 vendorXen

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Severity

N/A

Exploit prediction

EPSS 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xen · Xenwordpress-plugin

95%

3.4.0 3.4.1 4.1.0 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 4.1.6.1 4.2.0 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.3.0 4.3.1 4.3.2 4.3.3 4.3.4 4.4.0 4.4.0 rc1 4.4.1 4.4.2 4.4.3 4.5.0 4.5.1 4.5.2 4.6.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Vendor Advisoryx_refsource_DEBIAN

Source: [email protected]

http://www.debian.org/security/2016/dsa-3519

VDB Entryx_refsource_SECTRACK

Source: [email protected]

http://www.securitytracker.com/id/1034744

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

http://xenbits.xen.org/xsa/advisory-167.html

CVSS

6.9MEDIUM[email protected]

Confidentiality: COMPLETE
Integrity: COMPLETE
Availability: COMPLETE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20

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