openSUSE Security Update : xen (openSUSE-2019-1419) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)

high Nessus Plugin ID 125305

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VPR Score: 7.7

Synopsis

The remote openSUSE host is missing a security update.

Description

This update for xen fixes the following issues :

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

- CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)

- CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)

- CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)

- CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

These updates contain the XEN Hypervisor adjustments, that additionaly also use CPU Microcode updates.

The mitigation can be controlled via the 'mds' commandline option, see the documentation.

For more information on this set of vulnerabilities, check out https://www.suse.com/support/kb/doc/?id=7023736

Security issue fixed :

- CVE-2018-20815: Fixed a heap buffer overflow while loading device tree blob (bsc#1130680)

Other fixes :

- Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.

The included README has details about the impact of this change (bsc#1120095)

This update was imported from the SUSE:SLE-12-SP3:Update update project.

Solution

Update the affected xen packages.

Plugin Details

Severity: High

ID: 125305

File Name: openSUSE-2019-1419.nasl

Version: 1.5

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/21/2019

Updated: 1/19/2021

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 7.7

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:xen, p-cpe:/a:novell:opensuse:xen-debugsource, p-cpe:/a:novell:opensuse:xen-devel, p-cpe:/a:novell:opensuse:xen-doc-html, p-cpe:/a:novell:opensuse:xen-libs, p-cpe:/a:novell:opensuse:xen-libs-32bit, p-cpe:/a:novell:opensuse:xen-libs-debuginfo, p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit, p-cpe:/a:novell:opensuse:xen-tools, p-cpe:/a:novell:opensuse:xen-tools-debuginfo, p-cpe:/a:novell:opensuse:xen-tools-domU, p-cpe:/a:novell:opensuse:xen-tools-domU-debuginfo, cpe:/o:novell:opensuse:42.3

Required KB Items: Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/20/2019

Vulnerability Publication Date: 5/30/2019

Reference Information

CVE: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2018-20815, CVE-2019-11091