SB2023021502 - Multiple DoS vulnerabilities in Microsoft Windows Secure Channel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2023-21813)

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 Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.

2) Input validation error (CVE-ID: CVE-2023-21818)

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 Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.

3) Input validation error (CVE-ID: CVE-2023-21819)

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 Windows Secure Channel implementation. A remote attacker can pass specially crafted input to the system and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21813
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21818
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819