SB2021060821 - Multiple vulnerabilities in Microsoft Server for NFS

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2021-31976)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Server for NFS. A remote attacker can gain unauthorized access to sensitive information on the system.

2) Information disclosure (CVE-ID: CVE-2021-31975)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Server for NFS. A remote attacker can gain unauthorized access to sensitive information on the system.

3) Input validation error (CVE-ID: CVE-2021-31974)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Server for NFS. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31976
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31975
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31974