Multiple vulnerabilities in Microsoft Office



Published: 2022-10-11 | Updated: 2022-10-17
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-38048
CVE-2022-41043
CVE-2022-38001
CWE-ID CWE-416
CWE-200
CWE-451
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Microsoft Office LTSC 2021
Other software / Other software solutions

Microsoft Office
Client/Desktop applications / Office applications

Microsoft 365 Apps for Enterprise
Client/Desktop applications / Other client software

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU68151

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-38048

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when parsing DOCX files. A remote attacker can trick the victim to open a specially crafted Word file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office LTSC 2021: 32 bit editions - 2021 for Mac

Microsoft Office: 2013 RT Service Pack 1 - 2019 for Mac

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38048
http://www.zerodayinitiative.com/advisories/ZDI-22-1411/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Information disclosure

EUVDB-ID: #VU68154

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-41043

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in the Microsoft Office. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office LTSC 2021: 2021 for Mac

Microsoft Office: 2019 for Mac


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41043

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Spoofing attack

EUVDB-ID: #VU68152

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-38001

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in the Microsoft Office. A remote attacker can trick a victim to open a specially crafted file and spoof page content.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office LTSC 2021: 32 bit editions - 64 bit editions

Microsoft Office: 2019

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38001

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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