SB2024051444 - Multiple vulnerabilities in Microsoft Win32k

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2024-30038)

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

The vulnerability exists due to a boundary error in Win32k. 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) Use-after-free (CVE-ID: CVE-2024-30028)

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

The vulnerability exists due to a use-after-free error in Win32k. A local user can gain elevated privileges on the target system.

3) NULL pointer dereference (CVE-ID: CVE-2024-30030)

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

The vulnerability exists due to a NULL pointer dereference error in Win32k. A local user can pass specially crafted data to the application and gain elevated privileges on the target system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30038
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30028
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30030