CVE-2018-8432 — Microsoft Graphics Components Remote Code Execution Vulnerability

Executive Summary

A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. To exploit the vulnerability, a user would have to open a specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Graphics Components handle objects in memory.

Overview

5

CVSS MEDIUM

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Remote Code Execution

Released Oct 9 2018

Last Updated Oct 9 2018

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

CVSS Vector

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

PRIVILEGES REQUIRED

None

USER INTERACTION

Required

SCOPE

Unchanged

CONFIDENTIALITY

Low

INTEGRITY

Low

AVAILABILITY

Low

EXPLOIT CODE MATURITY

Proof-of-Concept

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 4.5

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

13 affected products

Product	KB Article	Severity	Impact	Restart Required
Microsoft Excel Viewer 2007 Service Pack 3	`4092444 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office 2016 for Mac	`Release Notes (Security Update)`	Important	Remote Code Execution	No
Microsoft Office 2019 for 32-bit editions	`Click to Run (Security Update)`	Important	Remote Code Execution	No
Microsoft Office 2019 for 64-bit editions	`Click to Run (Security Update)`	Important	Remote Code Execution	No
Microsoft Office Compatibility Pack Service Pack 3	`4092444 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Office Word Viewer	`4092464 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft PowerPoint Viewer 2007	`4092444 (Security Update)`	Important	Remote Code Execution	Maybe
Office 365 ProPlus for 32-bit Systems	`Click to Run (Security Update)`	Important	Remote Code Execution	No
Office 365 ProPlus for 64-bit Systems	`Click to Run (Security Update)`	Important	Remote Code Execution	No
Windows 10 Version 1809 for 32-bit Systems	`4464330 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1809 for x64-based Systems	`4464330 (Security Update)`	Important	Remote Code Execution	Yes
Windows 7 for 32-bit Systems Service Pack 1 4462923 (Monthly Rollup) 4462915 (Security Only) Important Remote Code Execution 4457144 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows 7 for x64-based Systems Service Pack 1 4462923 (Monthly Rollup) 4462915 (Security Only) Important Remote Code Execution 4457144 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 4463097 (Monthly Rollup) 4463104 (Security Only) Important Remote Code Execution 4458010 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4463097 (Monthly Rollup) 4463104 (Security Only) Important Remote Code Execution 4458010 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 for Itanium-Based Systems Service Pack 2 4463097 (Monthly Rollup) 4463104 (Security Only) Important Remote Code Execution 4458010 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 4463097 (Monthly Rollup) 4463104 (Security Only) Important Remote Code Execution 4458010 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4463097 (Monthly Rollup) 4463104 (Security Only) Important Remote Code Execution 4458010 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4462923 (Monthly Rollup) 4462915 (Security Only) Important Remote Code Execution 4457144 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 4462923 (Monthly Rollup) 4462915 (Security Only) Important Remote Code Execution 4457144 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4462923 (Monthly Rollup) 4462915 (Security Only) Important Remote Code Execution 4457144 Base: 5.0 Temporal: 4.5 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C Yes None Windows Server 2019	`4464330 (Security Update)`	Important	Remote Code Execution	Yes
Windows Server 2019 (Server Core installation)	`4464330 (Security Update)`	Important	Remote Code Execution	Yes

Patches

5 patches

Article	Type	Restart
`4092444`	Security Update	Maybe
`Release Notes`	Security Update	No
`Click to Run`	Security Update	No
`4092464`	Security Update	Maybe
`4464330`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Lin Wang of Beihang University

References

MSRC Advisory MITRE NVD