CVE-2016-3961

medium
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Description

Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.

References

http://www.debian.org/security/2016/dsa-3607

http://www.securityfocus.com/bid/86068

http://www.securitytracker.com/id/1035569

http://www.ubuntu.com/usn/USN-3001-1

http://www.ubuntu.com/usn/USN-3002-1

http://www.ubuntu.com/usn/USN-3003-1

http://www.ubuntu.com/usn/USN-3004-1

http://www.ubuntu.com/usn/USN-3005-1

http://www.ubuntu.com/usn/USN-3006-1

http://www.ubuntu.com/usn/USN-3007-1

http://www.ubuntu.com/usn/USN-3049-1

http://www.ubuntu.com/usn/USN-3050-1

http://xenbits.xen.org/xsa/advisory-174.html

http://xenbits.xen.org/xsa/xsa174.patch

Details

Source: MITRE

Published: 2016-04-15

Updated: 2016-11-28

Type: CWE-20

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (16 total)

IDNameProductFamilySeverity
94732Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3127-2)NessusUbuntu Local Security Checks
high
94731Ubuntu 14.04 LTS : linux vulnerabilities (USN-3127-1)NessusUbuntu Local Security Checks
high
92860Ubuntu 12.04 LTS : linux vulnerabilities (USN-3049-1)NessusUbuntu Local Security Checks
high
91886Debian DSA-3607-1 : linux - security updateNessusDebian Local Security Checks
critical
91687Debian DLA-516-1 : linux security updateNessusDebian Local Security Checks
critical
91569Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3007-1)NessusUbuntu Local Security Checks
high
91568Ubuntu 16.04 LTS : linux vulnerabilities (USN-3006-1)NessusUbuntu Local Security Checks
high
91567Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3005-1)NessusUbuntu Local Security Checks
high
91566Ubuntu 15.10 : linux-raspi2 vulnerabilities (USN-3004-1)NessusUbuntu Local Security Checks
critical
91565Ubuntu 15.10 : linux vulnerabilities (USN-3003-1)NessusUbuntu Local Security Checks
critical
91564Ubuntu 14.04 LTS : linux-lts-wily vulnerabilities (USN-3002-1)NessusUbuntu Local Security Checks
critical
91563Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-3001-1)NessusUbuntu Local Security Checks
critical
91241Amazon Linux AMI : kernel (ALAS-2016-703)NessusAmazon Linux Local Security Checks
high
90952Fedora 22 : kernel-4.4.8-200.fc22 (2016-373c063e79)NessusFedora Local Security Checks
critical
90769Fedora 23 : kernel-4.4.8-300.fc23 (2016-8a1f49149e)NessusFedora Local Security Checks
critical
90693Fedora 24 : binutils-2.26-18.fc24 / kernel-4.5.2-301.fc24 (2016-7f37d42add)NessusFedora Local Security Checks
critical