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ubuntucveUbuntu.comUB:CVE-2016-9386
HistoryJan 23, 2017 - 12:00 a.m.

CVE-2016-9386

2017-01-2300:00:00
ubuntu.com
ubuntu.com
8

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

25.6%

JSON

The x86 emulator in Xen does not properly treat x86 NULL segments as
unusable when accessing memory, which might allow local HVM guest users to
gain privileges via vectors involving “unexpected” base/limit values.

Notes

Author Note
mdeslaur This is XSA-191
OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchxen< 4.1.6.1-0ubuntu0.12.04.13UNKNOWN
ubuntu14.04noarchxen< 4.4.2-0ubuntu0.14.04.9UNKNOWN
ubuntu16.04noarchxen< 4.6.0-1ubuntu4.3UNKNOWN
ubuntu16.10noarchxen< 4.7.0-0ubuntu2.1UNKNOWN
ubuntu17.04noarchxen< 4.8.0-1ubuntu1UNKNOWN

Related

cve 1
redhatcve 1
nessus 22
xen 1
osv 3
prion 1
debiancve 1
freebsd 1
debian 3
openvas 17
citrix 1
fedora 4
suse 9
gentoo 1
mageia 1
cve
cve
CVE-2016-9386
2017-01-23 21:59:00
redhatcve
redhatcve
CVE-2016-9386
2016-11-22 12:47:20
nessus
nessus
FreeBSD : xen-kernel -- x86 null segments not always treated as unusable (50ac2e96-ba4d-11e6-ae1b-002590263bf5)
2016-12-05 00:00:00
Debian DLA-720-1 : xen security update
2016-11-25 00:00:00
Citrix XenServer Multiple Vulnerabilities (CTX218775)
2016-12-05 00:00:00
xen
xen
x86 null segments not always treated as unusable
2016-11-22 12:00:00
osv
osv
CVE-2016-9386
2017-01-23 21:59:02
xen - security update
2016-11-24 00:00:00
xen - security update
2016-12-07 00:00:00
prion
prion
Code injection
2017-01-23 21:59:00
debiancve
debiancve
CVE-2016-9386
2017-01-23 21:59:00
freebsd
freebsd
xen-kernel -- x86 null segments not always treated as unusable
2016-11-22 00:00:00
debian
debian
[SECURITY] [DLA 720-1] xen security update
2016-11-24 11:28:03
[SECURITY] [DSA 3729-1] xen security update
2016-12-07 20:31:37
[SECURITY] [DSA 3729-1] xen security update
2016-12-07 20:31:37
openvas
openvas
Debian: Security Advisory (DLA-720-1)
2023-03-08 00:00:00
Debian Security Advisory DSA 3729-1 (xen - security update)
2016-12-07 00:00:00
Debian: Security Advisory (DSA-3729-1)
2016-12-06 00:00:00
citrix
citrix
Citrix XenServer Multiple Security Updates
2016-11-22 05:00:00
fedora
fedora
[SECURITY] Fedora 23 Update: xen-4.5.5-4.fc23
2016-12-03 03:22:03
[SECURITY] Fedora 24 Update: xen-4.6.4-2.fc24
2016-12-04 05:26:00
[SECURITY] Fedora 25 Update: xen-4.7.1-3.fc25
2016-12-04 16:53:35
suse
suse
Security update for xen (important)
2016-12-27 17:11:00
Security update for xen (important)
2016-12-07 20:07:43
Security update for xen (important)
2016-12-14 01:18:52
gentoo
gentoo
Xen: Multiple vulnerabilities
2016-12-31 00:00:00
mageia
mageia
Updated xen packages fix security vulnerability
2017-01-09 23:29:57

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

25.6%

JSON
Related for UB:CVE-2016-9386
cve1redhatcve1nessus22xen1osv3prion1debiancve1freebsd1debian3openvas17citrix1fedora4suse9gentoo1mageia1