FreeBSD : xen-kernel -- x86 HVM: Overflow of sh_ctxt->seg_reg[] (4aae54be-ba4d-11e6-ae1b-002590263bf5)

Low Nessus Plugin ID 95502


The remote FreeBSD host is missing a security-related update.


The Xen Project reports :

x86 HVM guests running with shadow paging use a subset of the x86 emulator to handle the guest writing to its own pagetables. There are situations a guest can provoke which result in exceeding the space allocated for internal state.

A malicious HVM guest administrator can cause Xen to fail a bug check, causing a denial of service to the host.


Update the affected package.

See Also

Plugin Details

Severity: Low

ID: 95502

File Name: freebsd_pkg_4aae54beba4d11e6ae1b002590263bf5.nasl

Version: $Revision: 3.1 $

Type: local

Published: 2016/12/05

Modified: 2016/12/05

Dependencies: 12634

Risk Information

Risk Factor: Low


Base Score: 1.5

Vector: CVSS2#AV:L/AC:M/Au:S/C:N/I:N/A:P


Base Score: 4.1

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:xen-kernel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2016/12/04

Vulnerability Publication Date: 2016/09/08

Reference Information

CVE: CVE-2016-7094