SB2023121280 - Multiple vulnerabilities in Microsoft DHCP Server Service

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2023-35643)

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 DHCP Server Service. A remote attacker can gain unauthorized access to sensitive information on the system.

2) Input validation error (CVE-ID: CVE-2023-35638)

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 DHCP Server Service. 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://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35643
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35638