SB2022101155 - Multiple vulnerabilities in Microsoft Office

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2022-38048)

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.

2) Information disclosure (CVE-ID: CVE-2022-41043)

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.

3) Spoofing attack (CVE-ID: CVE-2022-38001)

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.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38048
• https://www.zerodayinitiative.com/advisories/ZDI-22-1411/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41043
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-38001