CVE-2016-9377

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.

References

http://www.securityfocus.com/bid/94475

http://www.securitytracker.com/id/1037345

http://xenbits.xen.org/xsa/advisory-196.html

https://security.gentoo.org/glsa/201612-56

Details

Source: MITRE

Published: 2017-02-22

Updated: 2017-07-28

Type: CWE-682

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 (9 total)

IDNameProductFamilySeverity
96252openSUSE Security Update : xen (openSUSE-2017-4)NessusSuSE Local Security Checks
high
96231GLSA-201612-56 : Xen: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
95910openSUSE Security Update : xen (openSUSE-2016-1477)NessusSuSE Local Security Checks
high
95761SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:3083-1)NessusSuSE Local Security Checks
high
95709SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:3067-1)NessusSuSE Local Security Checks
high
95630Xen Multiple Vulnerabilities (XSA-191 - XSA-198)NessusMisc.
high
95493Fedora 25 : xen (2016-999e1a6927)NessusFedora Local Security Checks
high
95492Fedora 24 : xen (2016-95c104a4c6)NessusFedora Local Security Checks
high
95491Fedora 23 : xen (2016-68b71978a1)NessusFedora Local Security Checks
high