FreeBSD : xen-tools -- Unrestricted qemu logging (e800cd4b-4212-11e6-942d-bc5ff45d0f28)

Low Nessus Plugin ID 91940

Synopsis

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

Description

The Xen Project reports :

When the libxl toolstack launches qemu for HVM guests, it pipes the output of stderr to a file in /var/log/xen. This output is not rate-limited in any way. The guest can easily cause qemu to print messages to stderr, causing this file to become arbitrarily large.

The disk containing the logfile can be exhausted, possibly causing a denial-of-service (DoS).

Solution

Update the affected package.

See Also

http://xenbits.xen.org/xsa/advisory-180.html

http://www.nessus.org/u?0fc83dd2

Plugin Details

Severity: Low

ID: 91940

File Name: freebsd_pkg_e800cd4b421211e6942dbc5ff45d0f28.nasl

Version: 2.4

Type: local

Published: 2016/07/05

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 2.1

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

CVSS v3.0

Base Score: 6.5

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

Vulnerability Information

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

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

Patch Publication Date: 2016/07/04

Vulnerability Publication Date: 2016/05/23

Reference Information

CVE: CVE-2014-3672