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Debian DLA-907-1 : xen security update

high Nessus Plugin ID 99601

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Synopsis

The remote Debian host is missing a security update.

Description

CVE-2017-7228 (XSA-212)

An insufficient check on XENMEM_exchange may allow PV guests to access all of system memory.

For Debian 7 'Wheezy', these problems have been fixed in version 4.1.6.lts1-6.

We recommend that you upgrade your xen packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/04/msg00026.html

https://packages.debian.org/source/wheezy/xen

Plugin Details

Severity: High

ID: 99601

File Name: debian_DLA-907.nasl

Version: 3.6

Type: local

Agent: unix

Published: 4/24/2017

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libxenstore3.0, p-cpe:/a:debian:debian_linux:xen-utils-common, p-cpe:/a:debian:debian_linux:xen-docs-4.1, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:libxen-ocaml-dev, p-cpe:/a:debian:debian_linux:xen-system-amd64, p-cpe:/a:debian:debian_linux:xenstore-utils, p-cpe:/a:debian:debian_linux:xen-hypervisor-4.1-i386, p-cpe:/a:debian:debian_linux:libxen-4.1, p-cpe:/a:debian:debian_linux:xen-hypervisor-4.1-amd64, p-cpe:/a:debian:debian_linux:xen-utils-4.1, p-cpe:/a:debian:debian_linux:xen-system-i386, p-cpe:/a:debian:debian_linux:libxen-dev, p-cpe:/a:debian:debian_linux:libxen-ocaml

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/21/2017

Reference Information

CVE: CVE-2017-7228