SB2023011111 - Multiple vulnerabilities in Microsoft Windows Lightweight Directory Access Protocol (LDAP)

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2023-21557)

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 Lightweight Directory Access Protocol (LDAP). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

2) Input validation error (CVE-ID: CVE-2023-21676)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Windows Lightweight Directory Access Protocol (LDAP). A remote user can pass specially crafted input to the application and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21557
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21676