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prionPRIOn knowledge basePRION:CVE-2016-4480
HistoryMay 18, 2016 - 2:59 p.m.

Memory corruption

2016-05-1814:59:00
PRIOn knowledge base
www.prio-n.com
7

8.4 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

AI Score

Confidence

Low

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

0.002 Low

EPSS

Percentile

50.9%

JSON

The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.

CPENameOperatorVersion
vm_servereq3.4
vm_servereq3.2
vm_servereq3.3
xenle4.6.1

Related

fedora 3
redhatcve 1
freebsd 1
nessus 14
openvas 12
xen 1
cve 1
debiancve 1
ubuntucve 1
debian 2
osv 2
suse 5
mageia 1
fedora
fedora
[SECURITY] Fedora 24 Update: xen-4.6.1-9.fc24
2016-05-21 20:50:21
[SECURITY] Fedora 23 Update: xen-4.5.3-5.fc23
2016-05-28 23:57:26
[SECURITY] Fedora 22 Update: xen-4.5.3-5.fc22
2016-05-28 23:24:56
redhatcve
redhatcve
CVE-2016-4480
2016-05-17 14:18:26
freebsd
freebsd
xen-kernel -- x86 software guest page walk PS bit handling flaw
2016-05-17 00:00:00
nessus
nessus
FreeBSD : xen-kernel -- x86 software guest page walk PS bit handling flaw (e43b210a-4212-11e6-942d-bc5ff45d0f28)
2016-07-05 00:00:00
Fedora 23 : xen (2016-19c82866bb)
2016-07-14 00:00:00
Fedora 24 : xen (2016-5d5a8bfbc5)
2016-07-14 00:00:00
openvas
openvas
Fedora Update for xen FEDORA-2016-5d5a8bfbc5
2016-06-08 00:00:00
Fedora Update for xen FEDORA-2016-19c82866bb
2016-06-08 00:00:00
Fedora Update for xen FEDORA-2016-8fd9019541
2016-06-08 00:00:00
xen
xen
x86 software guest page walk PS bit handling flaw
2016-05-17 10:54:00
cve
cve
CVE-2016-4480
2016-05-18 14:59:00
debiancve
debiancve
CVE-2016-4480
2016-05-18 14:59:00
ubuntucve
ubuntucve
CVE-2016-4480
2016-05-18 00:00:00
debian
debian
[SECURITY] [DSA 3633-1] xen security update
2016-07-27 21:36:24
[SECURITY] [DLA 571-1] xen security update
2016-07-30 09:09:30
osv
osv
xen - security update
2016-07-27 00:00:00
xen - security update
2016-07-30 00:00:00
suse
suse
Security update for xen (important)
2016-10-13 20:08:40
Security update for xen (important)
2016-11-04 15:11:21
Security update for xen (important)
2016-10-11 19:20:30
mageia
mageia
Updated xen packages fix security vulnerability
2017-01-09 23:29:57

8.4 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

AI Score

Confidence

Low

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

0.002 Low

EPSS

Percentile

50.9%

JSON
Related for PRION:CVE-2016-4480
fedora3redhatcve1freebsd1nessus14openvas12xen1cve1debiancve1ubuntucve1debian2osv2suse5mageia1