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SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:0438-1) (Meltdown) (Spectre)
high Nessus Plugin ID 106834
Language:
Synopsis
The remote SUSE host is missing one or more security updates.Description
This update for xen fixes several issues. These security issues were fixed :- CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via side effects of speculative execution, aka 'Spectre' and 'Meltdown' attacks (bsc#1074562, bsc#1068032)
- CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081)
- CVE-2017-17566: Prevent PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page (bsc#1070158).
- CVE-2017-17563: Prevent guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode (bsc#1070159).
- CVE-2017-17564: Prevent guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode (bsc#1070160).
- CVE-2017-17565: Prevent PV guest OS users to cause a denial of service (host OS crash) if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P (bsc#1070163).
- CVE-2018-5683: The vga_draw_text function allowed local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation (bsc#1076116).
- CVE-2017-18030: The cirrus_invalidate_region function allowed local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch (bsc#1076180).
The update package also includes non-security fixes. See advisory for details.
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 YaST online_update.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-SP3-2018-302=1
SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-302=1
SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-302=1
SUSE CaaS Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2018-302=1
To bring your system up-to-date, use 'zypper patch'.
See Also
https://www.suse.com/security/cve/CVE-2017-17564/
https://www.suse.com/security/cve/CVE-2017-17565/
https://www.suse.com/security/cve/CVE-2017-17566/
https://www.suse.com/security/cve/CVE-2017-18030/
https://www.suse.com/security/cve/CVE-2017-5715/
https://www.suse.com/security/cve/CVE-2017-5753/
https://www.suse.com/security/cve/CVE-2017-5754/
https://www.suse.com/security/cve/CVE-2018-5683/
http://www.nessus.org/u?aa241230
https://bugzilla.suse.com/show_bug.cgi?id=1027519
https://bugzilla.suse.com/show_bug.cgi?id=1035442
https://bugzilla.suse.com/show_bug.cgi?id=1051729
https://bugzilla.suse.com/show_bug.cgi?id=1061081
https://bugzilla.suse.com/show_bug.cgi?id=1067317
https://bugzilla.suse.com/show_bug.cgi?id=1068032
https://bugzilla.suse.com/show_bug.cgi?id=1070158
https://bugzilla.suse.com/show_bug.cgi?id=1070159
https://bugzilla.suse.com/show_bug.cgi?id=1070160
https://bugzilla.suse.com/show_bug.cgi?id=1070163
https://bugzilla.suse.com/show_bug.cgi?id=1074562
https://bugzilla.suse.com/show_bug.cgi?id=1076116
https://bugzilla.suse.com/show_bug.cgi?id=1076180
Plugin Details
Severity: High
ID: 106834
File Name: suse_SU-2018-0438-1.nasl
Version: 3.7
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 2/15/2018
Updated: 9/10/2019
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.4
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 8.4
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:H/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-domu-debuginfo, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:xen-tools-domu, p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-doc-html
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: 2/14/2018
Vulnerability Publication Date: 10/18/2017
Exploitable With
CANVAS (CANVAS)
Reference Information
CVE: CVE-2017-15595, CVE-2017-17563, CVE-2017-17564, CVE-2017-17565, CVE-2017-17566, CVE-2017-18030, CVE-2017-5715, CVE-2017-5753, CVE-2017-5754, CVE-2018-5683
IAVA: 2018-A-0019, 2018-A-0020