CVE-2016-3157HIGH
Description
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
References
http://www.debian.org/security/2016/dsa-3607
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/84594
http://www.securitytracker.com/id/1035308
http://www.ubuntu.com/usn/USN-2968-1
http://www.ubuntu.com/usn/USN-2968-2
http://www.ubuntu.com/usn/USN-2969-1
http://www.ubuntu.com/usn/USN-2970-1
http://www.ubuntu.com/usn/USN-2971-1
http://www.ubuntu.com/usn/USN-2971-2
http://www.ubuntu.com/usn/USN-2971-3
http://www.ubuntu.com/usn/USN-2996-1
Details
Source: MITRE
Published: 2016-04-12
Updated: 2016-12-03
Type: CWE-264
Risk Information
CVSS v2.0
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
CVSS v3.0
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 99163 | OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW) | Nessus | OracleVM Local Security Checks | critical |
| 96073 | OracleVM 3.2 : Unbreakable / etc (OVMSA-2016-0181) | Nessus | OracleVM Local Security Checks | critical |
| 96072 | OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0180) | Nessus | OracleVM Local Security Checks | critical |
| 96070 | Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2016-3657) | Nessus | Oracle Linux Local Security Checks | critical |
| 96069 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3656) | Nessus | Oracle Linux Local Security Checks | critical |
| 93148 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3596) | Nessus | Oracle Linux Local Security Checks | critical |
| 91886 | Debian DSA-3607-1 : linux - security update | Nessus | Debian Local Security Checks | critical |
| 91687 | Debian DLA-516-1 : linux security update | Nessus | Debian Local Security Checks | critical |
| 91559 | Ubuntu 12.04 LTS : linux vulnerabilities (USN-2996-1) | Nessus | Ubuntu Local Security Checks | critical |
| 91094 | Ubuntu 15.10 : linux-raspi2 vulnerabilities (USN-2971-3) | Nessus | Ubuntu Local Security Checks | high |
| 91093 | Ubuntu 14.04 LTS : linux-lts-wily vulnerabilities (USN-2971-2) | Nessus | Ubuntu Local Security Checks | high |
| 91092 | Ubuntu 15.10 : linux vulnerabilities (USN-2971-1) | Nessus | Ubuntu Local Security Checks | high |
| 91091 | Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-2970-1) | Nessus | Ubuntu Local Security Checks | high |
| 91090 | Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2969-1) | Nessus | Ubuntu Local Security Checks | high |
| 91089 | Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2968-2) | Nessus | Ubuntu Local Security Checks | high |
| 91088 | Ubuntu 14.04 LTS : linux vulnerabilities (USN-2968-1) | Nessus | Ubuntu Local Security Checks | high |
| 91085 | Ubuntu 16.04 LTS : linux-snapdragon vulnerability (USN-2965-4) | Nessus | Ubuntu Local Security Checks | critical |
| 91084 | Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-2965-3) | Nessus | Ubuntu Local Security Checks | critical |
| 91083 | Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-2965-2) | Nessus | Ubuntu Local Security Checks | critical |
| 91082 | Ubuntu 16.04 LTS : linux vulnerabilities (USN-2965-1) | Nessus | Ubuntu Local Security Checks | critical |
| 90471 | Fedora 22 : kernel-4.4.6-201.fc22 (2016-ed5110c4bb) | Nessus | Fedora Local Security Checks | high |
| 90463 | Fedora 23 : kernel-4.4.6-301.fc23 (2016-7e602c0e5e) | Nessus | Fedora Local Security Checks | high |
| 90330 | Fedora 24 : kernel-4.5.0-302.fc24 (2016-81fd1b03aa) | Nessus | Fedora Local Security Checks | high |
| 90298 | OracleVM 3.4 : kernel-uek (OVMSA-2016-0041) | Nessus | OracleVM Local Security Checks | high |
| 90297 | Oracle Linux 6 / 7 : kernel-uek (ELSA-2016-3529) | Nessus | Oracle Linux Local Security Checks | high |
| 89966 | Amazon Linux AMI : kernel (ALAS-2016-669) | Nessus | Amazon Linux Local Security Checks | high |