SUSE SLES12 Security Update : xen (SUSE-SU-2018:2483-1) (Foreshadow)

Medium Nessus Plugin ID 112106

Synopsis

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

Description

This update for xen fixes the following issues: This security issue was fixed :

- CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis (bsc#1091107, bsc#1027519).
These non-security issue were fixed :

- bsc#1102116: SSBD is not virtualized for guests

- bsc#1101684: Not able to disable the visibility of the new CPU flags

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 Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2018-1746=1

See Also

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1091107

https://bugzilla.suse.com/1101684

https://bugzilla.suse.com/1102116

https://www.suse.com/security/cve/CVE-2018-3646.html

http://www.nessus.org/u?85d652a0

Plugin Details

Severity: Medium

ID: 112106

File Name: suse_SU-2018-2483-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/08/24

Modified: 2018/09/05

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4.7

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

CVSSv3

Base Score: 5.6

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

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-kmp-default, p-cpe:/a:novell:suse_linux:xen-kmp-default-debuginfo, 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

Patch Publication Date: 2018/08/23

Reference Information

CVE: CVE-2018-3646