CVE-2018-20669

Upstream information

CVE-2018-20669 at MITRE

Description

An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through 4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation.

---

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important 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	7.8	7.8
Vector	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector	Local	Local
Access Complexity	Low	Low
Privileges Required	Low	Low
User Interaction	None	None
Scope	Unchanged	Unchanged
Confidentiality Impact	High	High
Integrity Impact	High	High
Availability Impact	High	High

SUSE Bugzilla entry: 1122971 [NEW]

SUSE Security Advisories:

• SUSE-SU-2019:0765-1, published Tue Mar 26 14:10:50 MDT 2019
• SUSE-SU-2019:0767-1, published Wed Mar 27 08:10:28 MDT 2019
• SUSE-SU-2019:0784-1, published
• SUSE-SU-2019:0785-1, published
• openSUSE-SU-2019:0203-1, published Mon, 18 Feb 2019 21:16:13 +0100 (CET)

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Build System Kit 12 SP4	kernel-zfcpdump >= 4.12.14-95.13.1	Patchnames: SUSE-SLE-BSK-12-SP4-2019-765
SUSE Linux Enterprise Desktop 12 SP4	kernel-default >= 4.12.14-95.13.1 kernel-default-devel >= 4.12.14-95.13.1 kernel-default-extra >= 4.12.14-95.13.1 kernel-devel >= 4.12.14-95.13.1 kernel-macros >= 4.12.14-95.13.1 kernel-source >= 4.12.14-95.13.1 kernel-syms >= 4.12.14-95.13.1	Patchnames: SUSE-SLE-DESKTOP-12-SP4-2019-765
SUSE Linux Enterprise High Availability 12 SP4	cluster-md-kmp-default >= 4.12.14-95.13.1 dlm-kmp-default >= 4.12.14-95.13.1 gfs2-kmp-default >= 4.12.14-95.13.1 kernel-default >= 4.12.14-95.13.1 ocfs2-kmp-default >= 4.12.14-95.13.1	Patchnames: SUSE-SLE-HA-12-SP4-2019-765
SUSE Linux Enterprise High Availability 15	cluster-md-kmp-default >= 4.12.14-150.14.2 dlm-kmp-default >= 4.12.14-150.14.2 gfs2-kmp-default >= 4.12.14-150.14.2 kernel-default >= 4.12.14-150.14.2 ocfs2-kmp-default >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Product-HA-15-2019-784
SUSE Linux Enterprise High Availability 15 SP1	cluster-md-kmp-default >= 4.12.14-195.1 dlm-kmp-default >= 4.12.14-195.1 gfs2-kmp-default >= 4.12.14-195.1 ocfs2-kmp-default >= 4.12.14-195.1	Patchnames: SUSE Linux Enterprise High Availability 15 SP1 GA cluster-md-kmp-default
SUSE Linux Enterprise Live Patching 12 SP4	kgraft-patch-4_12_14-95_13-default >= 1-6.7.1 kgraft-patch-SLE12-SP4_Update_3 >= 1-6.7.1	Patchnames: SUSE-SLE-Live-Patching-12-SP4-2019-765
SUSE Linux Enterprise Module for Basesystem 15	kernel-default >= 4.12.14-150.14.2 kernel-default-base >= 4.12.14-150.14.2 kernel-default-devel >= 4.12.14-150.14.2 kernel-default-man >= 4.12.14-150.14.2 kernel-devel >= 4.12.14-150.14.1 kernel-macros >= 4.12.14-150.14.1 kernel-source >= 4.12.14-150.14.1 kernel-zfcpdump >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Module-Basesystem-15-2019-784
SUSE Linux Enterprise Module for Basesystem 15 SP1	kernel-default >= 4.12.14-195.1 kernel-default-base >= 4.12.14-195.1 kernel-default-devel >= 4.12.14-195.1 kernel-default-man >= 4.12.14-195.1 kernel-devel >= 4.12.14-195.1 kernel-macros >= 4.12.14-195.1 kernel-zfcpdump >= 4.12.14-195.1	Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP1 GA kernel-default
SUSE Linux Enterprise Module for Development Tools 15	kernel-docs >= 4.12.14-150.14.1 kernel-obs-build >= 4.12.14-150.14.2 kernel-source >= 4.12.14-150.14.1 kernel-syms >= 4.12.14-150.14.1 kernel-vanilla >= 4.12.14-150.14.2 kernel-vanilla-base >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Module-Development-Tools-15-2019-784
SUSE Linux Enterprise Module for Development Tools 15 SP1	kernel-docs >= 4.12.14-195.1 kernel-obs-build >= 4.12.14-195.1 kernel-source >= 4.12.14-195.1 kernel-syms >= 4.12.14-195.1	Patchnames: SUSE Linux Enterprise Module for Development Tools 15 SP1 GA kernel-docs
SUSE Linux Enterprise Module for Legacy Software 15	kernel-default >= 4.12.14-150.14.2 reiserfs-kmp-default >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Module-Legacy-15-2019-784
SUSE Linux Enterprise Module for Legacy Software 15 SP1	reiserfs-kmp-default >= 4.12.14-195.1	Patchnames: SUSE Linux Enterprise Module for Legacy Software 15 SP1 GA reiserfs-kmp-default
SUSE Linux Enterprise Module for Live Patching 15	kernel-default >= 4.12.14-150.14.2 kernel-default-livepatch >= 4.12.14-150.14.2 kernel-livepatch-4_12_14-150_14-default >= 1-1.9.3 kernel-livepatch-SLE15_Update_9 >= 1-1.9.3	Patchnames: SUSE-SLE-Module-Live-Patching-15-2019-784
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15	kernel-default >= 4.12.14-150.14.2 kernel-default-base >= 4.12.14-150.14.2 kernel-docs >= 4.12.14-150.14.1 kernel-docs-html >= 4.12.14-150.14.1 kernel-obs-qa >= 4.12.14-150.14.2 kselftests-kmp-default >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Module-Development-Tools-OBS-15-2019-784
SUSE Linux Enterprise Module for Public Cloud 15	kernel-azure >= 4.12.14-5.24.1 kernel-azure-base >= 4.12.14-5.24.1 kernel-azure-devel >= 4.12.14-5.24.1 kernel-devel-azure >= 4.12.14-5.24.1 kernel-source-azure >= 4.12.14-5.24.1 kernel-syms-azure >= 4.12.14-5.24.1	Patchnames: SUSE-SLE-Module-Public-Cloud-15-2019-785
SUSE Linux Enterprise Server 12 SP4	kernel-azure >= 4.12.14-6.9.1 kernel-azure-base >= 4.12.14-6.9.1 kernel-azure-devel >= 4.12.14-6.9.1 kernel-default >= 4.12.14-95.13.1 kernel-default-base >= 4.12.14-95.13.1 kernel-default-devel >= 4.12.14-95.13.1 kernel-default-man >= 4.12.14-95.13.1 kernel-devel >= 4.12.14-95.13.1 kernel-devel-azure >= 4.12.14-6.9.1 kernel-macros >= 4.12.14-95.13.1 kernel-source >= 4.12.14-95.13.1 kernel-source-azure >= 4.12.14-6.9.1 kernel-syms >= 4.12.14-95.13.1 kernel-syms-azure >= 4.12.14-6.9.1	Patchnames: SUSE-SLE-SERVER-12-SP4-2019-765 SUSE-SLE-SERVER-12-SP4-2019-767
SUSE Linux Enterprise Server for SAP Applications 12 SP4	kernel-azure >= 4.12.14-6.9.1 kernel-azure-base >= 4.12.14-6.9.1 kernel-azure-devel >= 4.12.14-6.9.1 kernel-default >= 4.12.14-95.13.1 kernel-default-base >= 4.12.14-95.13.1 kernel-default-devel >= 4.12.14-95.13.1 kernel-default-man >= 4.12.14-95.13.1 kernel-devel >= 4.12.14-95.13.1 kernel-devel-azure >= 4.12.14-6.9.1 kernel-macros >= 4.12.14-95.13.1 kernel-source >= 4.12.14-95.13.1 kernel-source-azure >= 4.12.14-6.9.1 kernel-syms >= 4.12.14-95.13.1 kernel-syms-azure >= 4.12.14-6.9.1	Patchnames: SUSE-SLE-SERVER-12-SP4-2019-765 SUSE-SLE-SERVER-12-SP4-2019-767
SUSE Linux Enterprise Software Development Kit 12 SP4	kernel-docs >= 4.12.14-95.13.1 kernel-obs-build >= 4.12.14-95.13.1	Patchnames: SUSE-SLE-SDK-12-SP4-2019-765
SUSE Linux Enterprise Workstation Extension 12 SP4	kernel-default >= 4.12.14-95.13.1 kernel-default-extra >= 4.12.14-95.13.1	Patchnames: SUSE-SLE-WE-12-SP4-2019-765
SUSE Linux Enterprise Workstation Extension 15	kernel-default >= 4.12.14-150.14.2 kernel-default-extra >= 4.12.14-150.14.2	Patchnames: SUSE-SLE-Product-WE-15-2019-784
SUSE Linux Enterprise Workstation Extension 15 SP1	kernel-default-extra >= 4.12.14-195.1	Patchnames: SUSE Linux Enterprise Workstation Extension 15 SP1 GA kernel-default-extra
openSUSE Leap 15.0	kernel-debug >= 4.12.14-lp150.12.48.1 kernel-debug-base >= 4.12.14-lp150.12.48.1 kernel-debug-base-debuginfo >= 4.12.14-lp150.12.48.1 kernel-debug-debuginfo >= 4.12.14-lp150.12.48.1 kernel-debug-debugsource >= 4.12.14-lp150.12.48.1 kernel-debug-devel >= 4.12.14-lp150.12.48.1 kernel-debug-devel-debuginfo >= 4.12.14-lp150.12.48.1 kernel-default >= 4.12.14-lp150.12.48.1 kernel-default-base >= 4.12.14-lp150.12.48.1 kernel-default-base-debuginfo >= 4.12.14-lp150.12.48.1 kernel-default-debuginfo >= 4.12.14-lp150.12.48.1 kernel-default-debugsource >= 4.12.14-lp150.12.48.1 kernel-default-devel >= 4.12.14-lp150.12.48.1 kernel-default-devel-debuginfo >= 4.12.14-lp150.12.48.1 kernel-devel >= 4.12.14-lp150.12.48.1 kernel-docs >= 4.12.14-lp150.12.48.1 kernel-docs-html >= 4.12.14-lp150.12.48.1 kernel-kvmsmall >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-base >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-base-debuginfo >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-debuginfo >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-debugsource >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-devel >= 4.12.14-lp150.12.48.1 kernel-kvmsmall-devel-debuginfo >= 4.12.14-lp150.12.48.1 kernel-macros >= 4.12.14-lp150.12.48.1 kernel-obs-build >= 4.12.14-lp150.12.48.1 kernel-obs-build-debugsource >= 4.12.14-lp150.12.48.1 kernel-obs-qa >= 4.12.14-lp150.12.48.1 kernel-source >= 4.12.14-lp150.12.48.1 kernel-source-vanilla >= 4.12.14-lp150.12.48.1 kernel-syms >= 4.12.14-lp150.12.48.1 kernel-vanilla >= 4.12.14-lp150.12.48.1 kernel-vanilla-base >= 4.12.14-lp150.12.48.1 kernel-vanilla-base-debuginfo >= 4.12.14-lp150.12.48.1 kernel-vanilla-debuginfo >= 4.12.14-lp150.12.48.1 kernel-vanilla-debugsource >= 4.12.14-lp150.12.48.1 kernel-vanilla-devel >= 4.12.14-lp150.12.48.1 kernel-vanilla-devel-debuginfo >= 4.12.14-lp150.12.48.1	Patchnames: openSUSE-2019-203

---

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
SUSE Linux Enterprise Desktop 12 SP3	kernel-source	Not affected
SUSE Linux Enterprise Desktop 12 SP4	kernel-source	Released
SUSE Linux Enterprise High Performance Computing 12	kernel-source	Released
SUSE Linux Enterprise Module for Basesystem 15 GA	kernel-source	Released
SUSE Linux Enterprise Module for Development Tools 15 GA	kernel-source	Released
SUSE Linux Enterprise Server 11 SP3 LTSS	kernel-source	Not affected
SUSE Linux Enterprise Server 11 SP4	kernel-source	Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS	kernel-source	Analysis
SUSE Linux Enterprise Server 12 GA LTSS	kernel-source	Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS	kernel-source	Not affected
SUSE Linux Enterprise Server 12 SP3	kernel-source	Not affected
SUSE Linux Enterprise Server 12 SP4	kernel-source	Released
SUSE Linux Enterprise Server for SAP Applications 11 SP3	kernel-source	Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA	kernel-source	Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2	kernel-source	Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4	kernel-source	Released