Debian DSA-3847-1 : xen - security update

High Nessus Plugin ID 100071

Synopsis

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

Description

Jan Beulich and Jann Horn discovered multiple vulnerabilities in the Xen hypervisor, which may lead to privilege escalation, guest-to-host breakout, denial of service or information leaks.

In additional to the CVE identifiers listed above, this update also addresses the vulnerabilities announced as XSA-213, XSA-214 and XSA-215.

Solution

Upgrade the xen packages.

For the stable distribution (jessie), these problems have been fixed in version 4.4.1-9+deb8u9.

For the upcoming stable distribution (stretch), these problems have been fixed in version 4.8.1-1+deb9u1.

See Also

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

https://www.debian.org/security/2017/dsa-3847

Plugin Details

Severity: High

ID: 100071

File Name: debian_DSA-3847.nasl

Version: 3.6

Type: local

Agent: unix

Published: 2017/05/10

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

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:xen, cpe:/o:debian:debian_linux:8.0

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: 2017/05/09

Reference Information

CVE: CVE-2016-10013, CVE-2016-10024, CVE-2016-9932, CVE-2017-7228

DSA: 3847