GLSA-201611-09 : Xen: Multiple vulnerabilities (Bunker Buster)

high Nessus Plugin ID 94893
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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201611-09 (Xen: Multiple vulnerabilities)

Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details.
Impact :

A malicious guest administrator could escalate their privileges on the host system or cause a Denial of Service. Additionally, a malicious unprivileged guest user may be able to obtain or corrupt sensitive information (including cryptographic material) in other programs in the same guest.
Workaround :

There is no known workaround at this time.

Solution

All Xen users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/xen-4.6.3-r3' All Xen tools users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-emulation/xen-tools-4.6.3-r2

See Also

https://security.gentoo.org/glsa/201611-09

Plugin Details

Severity: High

ID: 94893

File Name: gentoo_GLSA-201611-09.nasl

Version: 2.4

Type: local

Published: 11/15/2016

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

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

CVSS v3

Risk Factor: High

Base Score: 8.8

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:xen, p-cpe:/a:gentoo:linux:xen-tools, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 11/15/2016

Reference Information

CVE: CVE-2016-6258, CVE-2016-7092, CVE-2016-7093, CVE-2016-7094, CVE-2016-7777

GLSA: 201611-09

IAVB: 2016-B-0118-S, 2016-B-0149-S