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ubuntucveUbuntu.comUB:CVE-2016-6259
HistoryAug 02, 2016 - 12:00 a.m.

CVE-2016-6259

2016-08-0200:00:00
ubuntu.com
ubuntu.com
10

6.2 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

0.002 Low

EPSS

Percentile

54.8%

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention
(SMAP) whitelisting in 32-bit exception and event delivery, which allows
local 32-bit PV guest OS kernels to cause a denial of service (hypervisor
and VM crash) by triggering a safety check.

Notes

Author Note
mdeslaur 4.5+ only
OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchxen< 4.6.0-1ubuntu4.2UNKNOWN

6.2 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

0.002 Low

EPSS

Percentile

54.8%