Rapid7 Vulnerability & Exploit Database

Gentoo Linux: CVE-2014-7155: Xen: Denial of service

Free InsightVM Trial No credit card necessary
Watch Demo See how it all works
Back to Search

Gentoo Linux: CVE-2014-7155: Xen: Denial of service

Severity
6
CVSS
(AV:A/AC:L/Au:N/C:P/I:P/A:P)
Published
10/02/2014
Created
07/25/2018
Added
10/30/2017
Modified
05/28/2021

Description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-xen

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;