CVE-2014-8594

2014-11-1900:00:00

ubuntu.com

5.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.007 Low

EPSS

Percentile

79.5%

JSON

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does
not properly restrict updates to only PV page tables, which allows remote
PV guests to cause a denial of service (NULL pointer dereference) by
leveraging hardware emulation services for HVM guests using Hardware
Assisted Paging (HAP).

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=770230>

Notes

Author	Note
mdeslaur	4.0+

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchxen< 4.1.6.1-0ubuntu0.12.04.4UNKNOWN
ubuntu14.04noarchxen< 4.4.1-0ubuntu0.14.04.2UNKNOWN
ubuntu14.10noarchxen< 4.4.1-0ubuntu0.14.10.2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	12.04	noarch	xen	< 4.1.6.1-0ubuntu0.12.04.4	UNKNOWN
ubuntu	14.04	noarch	xen	< 4.4.1-0ubuntu0.14.04.2	UNKNOWN
ubuntu	14.10	noarch	xen	< 4.4.1-0ubuntu0.14.10.2	UNKNOWN