Multiple vulnerabilities in Microsoft Excel

Published: 2024-08-14

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-38172 CVE-2024-38170
CWE-ID	CWE-122
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Microsoft Office LTSC 2021 Other software / Other software solutions Microsoft 365 Apps for Enterprise Client/Desktop applications / Office applications
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU95973

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-38172

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in Microsoft Excel. A remote attacker can trick a victim to open a specially crafted file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office LTSC 2021: 2021 for Mac

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

External links

http://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38172

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Heap-based buffer overflow

EUVDB-ID: #VU95974