CVE-2018-18883

Upstream information

CVE-2018-18883 at MITRE

Description

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	7.2
Vector	AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector	Local
Access Complexity	Low
Authentication	None
Confidentiality Impact	Complete
Integrity Impact	Complete
Availability Impact	Complete

CVSS v3 Scores
	National Vulnerability Database	SUSE
Base Score	8.8	5.8
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Access Vector	Local	Local
Access Complexity	Low	High
Privileges Required	Low	Low
User Interaction	None	None
Scope	Changed	Unchanged
Confidentiality Impact	High	Low
Integrity Impact	High	Low
Availability Impact	High	High
CVSSv3 Version	3	3

SUSE Bugzilla entry: 1114405 [RESOLVED / FIXED]

SUSE Security Advisories:

SUSE-SU-2018:4070-1, published Wed Dec 12 01:09:16 MST 2018
SUSE-SU-2018:4300-1, published Fri Dec 28 16:17:00 MST 2018
SUSE-SU-2019:0003-1, published Wed Jan 2 12:08:20 MST 2019
openSUSE-SU-2018:4111-1, published Thu, 13 Dec 2018 03:17:36 +0100 (CET)
openSUSE-SU-2018:4304-1, published Sat, 29 Dec 2018 15:11:23 +0100 (CET)

List of released packages

Product(s)	Fixed package version(s)	References
Image SLES15-EC2-CHOST-HVM-BYOS	`xen-libs >= 4.10.2_04-3.9.1` `xen-tools-domU >= 4.10.2_04-3.9.1`
SUSE CaaS Platform 3.0	`xen >= 4.9.3_03-3.47.1` `xen-libs >= 4.9.3_03-3.47.1` `xen-tools-domU >= 4.9.3_03-3.47.1`	Patchnames: SUSE-CAASP-3.0-2018-2896
SUSE CaaS Platform ALL	`xen >= 4.9.3_03-3.47.1` `xen-libs >= 4.9.3_03-3.47.1` `xen-tools-domU >= 4.9.3_03-3.47.1`	Patchnames: SUSE-CAASP-ALL-2018-2896
SUSE Linux Enterprise Desktop 12 SP3	`xen >= 4.9.3_03-3.47.1` `xen-libs >= 4.9.3_03-3.47.1` `xen-libs-32bit >= 4.9.3_03-3.47.1`	Patchnames: SUSE-SLE-DESKTOP-12-SP3-2018-2896
SUSE Linux Enterprise Desktop 12 SP4	`xen >= 4.11.1_02-2.3.1` `xen-libs >= 4.11.1_02-2.3.1` `xen-libs-32bit >= 4.11.1_02-2.3.1`	Patchnames: SUSE-SLE-DESKTOP-12-SP4-2019-3
SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5	`xen >= 4.12.1_06-1.1` `xen-doc-html >= 4.12.1_06-1.1` `xen-libs >= 4.12.1_06-1.1` `xen-libs-32bit >= 4.12.1_06-1.1` `xen-tools >= 4.12.1_06-1.1` `xen-tools-domU >= 4.12.1_06-1.1`
SUSE Linux Enterprise Module for Basesystem 15 SP1	`xen-libs >= 4.12.0_12-1.1` `xen-tools-domU >= 4.12.0_12-1.1`
SUSE Linux Enterprise Module for Basesystem 15 SP2	`xen-libs >= 4.13.1_02-1.2` `xen-tools-domU >= 4.13.1_02-1.2`
SUSE Linux Enterprise Module for Basesystem 15	`xen >= 4.10.2_04-3.9.1` `xen-libs >= 4.10.2_04-3.9.1` `xen-tools-domU >= 4.10.2_04-3.9.1`	Patchnames: SUSE-SLE-Module-Basesystem-15-2018-3063
SUSE Linux Enterprise Module for Server Applications 15 SP1	`xen >= 4.12.0_12-1.1` `xen-devel >= 4.12.0_12-1.1` `xen-tools >= 4.12.0_12-1.1`
SUSE Linux Enterprise Module for Server Applications 15 SP2	`xen >= 4.13.1_02-1.2` `xen-devel >= 4.13.1_02-1.2` `xen-tools >= 4.13.1_02-1.2` `xen-tools-xendomains-wait-disk >= 4.13.1_02-1.2`
SUSE Linux Enterprise Module for Server Applications 15	`xen >= 4.10.2_04-3.9.1` `xen-devel >= 4.10.2_04-3.9.1` `xen-tools >= 4.10.2_04-3.9.1`	Patchnames: SUSE-SLE-Module-Server-Applications-15-2018-3063
SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3	`xen >= 4.9.3_03-3.47.1` `xen-doc-html >= 4.9.3_03-3.47.1` `xen-libs >= 4.9.3_03-3.47.1` `xen-libs-32bit >= 4.9.3_03-3.47.1` `xen-tools >= 4.9.3_03-3.47.1` `xen-tools-domU >= 4.9.3_03-3.47.1`	Patchnames: SUSE-SLE-SERVER-12-SP3-2018-2896
SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4	`xen >= 4.11.1_02-2.3.1` `xen-doc-html >= 4.11.1_02-2.3.1` `xen-libs >= 4.11.1_02-2.3.1` `xen-libs-32bit >= 4.11.1_02-2.3.1` `xen-tools >= 4.11.1_02-2.3.1` `xen-tools-domU >= 4.11.1_02-2.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP4-2019-3
SUSE Linux Enterprise Software Development Kit 12 SP3	`xen >= 4.9.3_03-3.47.1` `xen-devel >= 4.9.3_03-3.47.1`	Patchnames: SUSE-SLE-SDK-12-SP3-2018-2896
SUSE Linux Enterprise Software Development Kit 12 SP4	`xen >= 4.11.1_02-2.3.1` `xen-devel >= 4.11.1_02-2.3.1`	Patchnames: SUSE-SLE-SDK-12-SP4-2019-3
SUSE Linux Enterprise Software Development Kit 12 SP5	`xen-devel >= 4.12.1_06-1.1`
openSUSE Leap 15.0	`xen >= 4.10.2_04-lp150.2.12.1` `xen-debugsource >= 4.10.2_04-lp150.2.12.1` `xen-devel >= 4.10.2_04-lp150.2.12.1` `xen-doc-html >= 4.10.2_04-lp150.2.12.1` `xen-libs >= 4.10.2_04-lp150.2.12.1` `xen-libs-32bit >= 4.10.2_04-lp150.2.12.1` `xen-libs-32bit-debuginfo >= 4.10.2_04-lp150.2.12.1` `xen-libs-debuginfo >= 4.10.2_04-lp150.2.12.1` `xen-tools >= 4.10.2_04-lp150.2.12.1` `xen-tools-debuginfo >= 4.10.2_04-lp150.2.12.1` `xen-tools-domU >= 4.10.2_04-lp150.2.12.1` `xen-tools-domU-debuginfo >= 4.10.2_04-lp150.2.12.1`	Patchnames: openSUSE-2019-1046
openSUSE Leap 42.3	`xen >= 4.9.3_03-34.1` `xen-debugsource >= 4.9.3_03-34.1` `xen-devel >= 4.9.3_03-34.1` `xen-doc-html >= 4.9.3_03-34.1` `xen-libs >= 4.9.3_03-34.1` `xen-libs-debuginfo >= 4.9.3_03-34.1` `xen-tools >= 4.9.3_03-34.1` `xen-tools-debuginfo >= 4.9.3_03-34.1` `xen-tools-domU >= 4.9.3_03-34.1` `xen-tools-domU-debuginfo >= 4.9.3_03-34.1`	Patchnames: openSUSE-2018-1530

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
SLES for SAP Applications	xen	Not affected
SUSE CaaS Platform 3.0	xen	Released
SUSE Container as a Service Platform 1.0	xen	Released
SUSE Container as a Service Platform 2.0	xen	Released
SUSE Linux Enterprise 15 Module for Basesystem	xen	Released
SUSE Linux Enterprise 15 Module for Server Applications	xen	Released
SUSE Linux Enterprise Desktop 12 SP3	xen	Released
SUSE Linux Enterprise Desktop 12 SP4	xen	Released
SUSE Linux Enterprise High Performance Computing 12 SP4	xen	Released
SUSE Linux Enterprise Server 11 SP3 LTSS	xen	Not affected
SUSE Linux Enterprise Server 11 SP4	xen	Not affected
SUSE Linux Enterprise Server 12 LTSS	xen	Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS	xen	Not affected
SUSE Linux Enterprise Server 12 SP3	xen	Released
SUSE Linux Enterprise Server 12 SP4	xen	Released
SUSE Linux Enterprise Server for SAP Applications 12	xen	Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2	xen	Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4	xen	Released
SUSE Linux Enterprise Software Development Kit 11 SP4	xen	Not affected
SUSE Linux Enterprise Software Development Kit 12 SP3	xen	Released
SUSE Linux Enterprise Software Development Kit 12 SP4	xen	Released