openSUSE Security Update : xen (openSUSE-2019-1419) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)
critical Nessus Plugin ID 125305
New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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.See Also
https://bugzilla.opensuse.org/show_bug.cgi?id=1027519
https://bugzilla.opensuse.org/show_bug.cgi?id=1111331
https://bugzilla.opensuse.org/show_bug.cgi?id=1120095
Plugin Details
Severity: Critical
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: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: High
Score: 7.7
CVSS v2
Risk Factor: High
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
Risk Factor: Critical
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