CVE-2015-7970

2015-10-3000:00:00

ubuntu.com

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

25.9%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchxen< 4.1.6.1-0ubuntu0.12.04.7UNKNOWN
ubuntu14.04noarchxen< 4.4.2-0ubuntu0.14.04.3UNKNOWN
ubuntu15.04noarchxen< 4.5.0-1ubuntu4.3UNKNOWN
ubuntu15.10noarchxen< 4.5.1-0ubuntu1.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	12.04	noarch	xen	< 4.1.6.1-0ubuntu0.12.04.7	UNKNOWN
ubuntu	14.04	noarch	xen	< 4.4.2-0ubuntu0.14.04.3	UNKNOWN
ubuntu	15.04	noarch	xen	< 4.5.0-1ubuntu4.3	UNKNOWN
ubuntu	15.10	noarch	xen	< 4.5.1-0ubuntu1.1	UNKNOWN