CVE-2015-7970

Xen 3.4.x-3.6.x - Denial of Service via p2m_pod_emergency_sweep Linear Scan

Title source: llm

Description

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

References (10)

Core 10

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/77362

Vendor Advisory x_refsource_confirm

http://support.citrix.com/article/CTX202404

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1034034

Vendor Advisory x_refsource_confirm

http://xenbits.xen.org/xsa/advisory-150.html

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2015/dsa-3414

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/201604-03

Scores

EPSS 0.0007

EPSS Percentile 21.8%

Details

CWE

CWE-399

Status published

Products (5)

xen/xen 3.4.0

xen/xen 3.4.1

xen/xen 3.4.2

xen/xen 3.4.3

xen/xen 3.4.4

Published Oct 30, 2015

Tracked Since Feb 18, 2026