CVE-2015-7835

2015-10-3000:00:00

ubuntu.com

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

25.6%

JSON

The 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.

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