SB2021091428 - Multiple vulnerabilities in Microsoft Windows Installer

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2021-36961)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Windows Installer. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Information disclosure (CVE-ID: CVE-2021-36962)

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 Windows Installer. A local user can gain unauthorized access to sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36961
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36962