SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:1456-1) (Spectre)

High Nessus Plugin ID 110222

Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for xen fixes the following issues: Security issues fixed :

- CVE-2018-3639: Spectre V4 – Speculative Store Bypass aka 'Memory Disambiguation' (bsc#1092631) This feature can be controlled by the 'ssbd=on/off' commandline flag for the XEN hypervisor.

- CVE-2018-10982: x86 vHPET interrupt injection errors (XSA-261 bsc#1090822)

- CVE-2018-10981: qemu may drive Xen into unbounded loop (XSA-262 bsc#1090823) Other bugfixes :

- Upstream patches from Jan (bsc#1027519)

- additional fixes related to Page Table Isolation (XPTI).
(bsc#1074562 XSA-254)

- qemu-system-i386 cannot handle more than 4 HW NICs (bsc#1090296)

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

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-996=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-996=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-996=1

SUSE CaaS Platform ALL :

To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1027519

https://bugzilla.suse.com/show_bug.cgi?id=1074562

https://bugzilla.suse.com/show_bug.cgi?id=1090296

https://bugzilla.suse.com/show_bug.cgi?id=1090822

https://bugzilla.suse.com/show_bug.cgi?id=1090823

https://bugzilla.suse.com/show_bug.cgi?id=1092631

https://www.suse.com/security/cve/CVE-2018-10981/

https://www.suse.com/security/cve/CVE-2018-10982/

https://www.suse.com/security/cve/CVE-2018-3639/

http://www.nessus.org/u?be810839

Plugin Details

Severity: High

ID: 110222

File Name: suse_SU-2018-1456-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2018/05/30

Updated: 2019/09/10

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: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-doc-html, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools-domU, p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo, cpe:/o:novell:suse_linux:12

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/05/28

Vulnerability Publication Date: 2018/05/10

Reference Information

CVE: CVE-2018-10981, CVE-2018-10982, CVE-2018-3639