SB20240611253 - Multiple vulnerabilities in Microsoft Winlogon

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2024-30066)

The vulnerability allows a local user to escalte privileges on the system.

The vulnerability exists due to a boundary error in Winlogon. A local user can pass specially crafted data to the application, trigger a heap-based buffer overflow and gain elevated privileges on the target system.

2) Integer overflow (CVE-ID: CVE-2024-30067)

The vulnerability allows a local user to escalte privileges on the system.

The vulnerability exists due to integer overflow in Winlogon. A local user can pass specially crafted data to the application, trigger integer overflow and gain elevated privileges on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30066
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30067