CVE-2016-8630

medium
New! CVE Severity Now Using CVSS v3

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Description

The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e

http://rhn.redhat.com/errata/RHSA-2017-0386.html

http://rhn.redhat.com/errata/RHSA-2017-0387.html

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7

http://www.openwall.com/lists/oss-security/2016/11/22/3

http://www.securityfocus.com/bid/94459

https://bugzilla.redhat.com/show_bug.cgi?id=1393350

https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e

Details

Source: MITRE

Published: 2016-11-28

Updated: 2018-01-05

Type: CWE-284

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

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

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.8.6 (inclusive)

Tenable Plugins

View all (22 total)

IDNameProductFamilySeverity
124973EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1520)NessusHuawei Local Security Checks
critical
124953EulerOS Virtualization 3.0.1.0 : kvm (EulerOS-SA-2019-1450)NessusHuawei Local Security Checks
high
124819EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1496)NessusHuawei Local Security Checks
critical
102511Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)NessusOracle Linux Local Security Checks
critical
101431Virtuozzo 7 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0386)NessusVirtuozzo Local Security Checks
high
97558CentOS 7 : kernel (CESA-2017:0386)NessusCentOS Local Security Checks
high
97516Scientific Linux Security Update : kernel on SL7.x x86_64 (20170302)NessusScientific Linux Local Security Checks
high
97510RHEL 7 : kernel-rt (RHSA-2017:0387)NessusRed Hat Local Security Checks
high
97509RHEL 7 : kernel (RHSA-2017:0386)NessusRed Hat Local Security Checks
high
97506Oracle Linux 7 : kernel (ELSA-2017-0386)NessusOracle Linux Local Security Checks
high
97079OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0039)NessusOracleVM Local Security Checks
high
97057Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3514)NessusOracle Linux Local Security Checks
high
96000Ubuntu 16.10 : linux-raspi2 vulnerabilities (USN-3162-2)NessusUbuntu Local Security Checks
critical
95999Ubuntu 16.10 : linux vulnerabilities (USN-3162-1)NessusUbuntu Local Security Checks
critical
95998Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3161-4)NessusUbuntu Local Security Checks
critical
95997Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3161-3)NessusUbuntu Local Security Checks
critical
95996Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3161-2)NessusUbuntu Local Security Checks
critical
95995Ubuntu 16.04 LTS : linux vulnerabilities (USN-3161-1)NessusUbuntu Local Security Checks
critical
95702openSUSE Security Update : the Linux Kernel (openSUSE-2016-1428)NessusSuSE Local Security Checks
critical
95308Fedora 23 : kernel (2016-ee3a114958)NessusFedora Local Security Checks
high
95008Fedora 25 : kernel (2016-876deae183)NessusFedora Local Security Checks
medium
94924Fedora 24 : kernel (2016-14c4187e3a)NessusFedora Local Security Checks
medium