Multiple vulnerabilities in Microsoft Graphics Components



Published: 2018-10-09
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-8432
CVE-2018-8427
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Microsoft Office for Mac
Client/Desktop applications / Office applications

Microsoft Word
Client/Desktop applications / Office applications

Microsoft Office Compatibility Pack
Client/Desktop applications / Office applications

Microsoft Excel
Client/Desktop applications / Office applications

Microsoft PowerPoint
Client/Desktop applications / Office applications

Microsoft Office
Client/Desktop applications / Office applications

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU15264

Risk: High

CVSSv3.1:

CVE-ID: CVE-2018-8432

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when Microsoft Graphics Components handle objects in memory. A remote unauthenticated attacker can trick the victim into opening a specially crafted file, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008 - 2019

Microsoft Office for Mac: 2016

Microsoft Word: Viewer

Microsoft Office Compatibility Pack: Service Pack 3

Windows: 7 - 10 1809

Microsoft Excel: Viewer 2007 Service Pack 3

Microsoft PowerPoint: Viewer

Microsoft Office: 365 ProPlus - 2019


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8432

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Information disclosure

EUVDB-ID: #VU15265

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-8427

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to boundary error when Microsoft Graphics Components handle objects in memory. A remote attacker can trick the victim into opening a specially crafted file, trigger memory corruption and gain access to potentially sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008

Microsoft Office for Mac: 2016

Microsoft Word: Viewer

Microsoft Office Compatibility Pack: Service Pack 3

Microsoft Excel: Viewer 2007 Service Pack 3

Microsoft PowerPoint: Viewer

Microsoft Office: 365 ProPlus - 2019


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8427

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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