SB20240611232 - Multiple vulnerabilities in Microsoft Win32k

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2024-30082)

The vulnerability allows a local user to compromise vulnerable system.

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

2) Input validation error (CVE-ID: CVE-2024-30087)

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

The vulnerability exists due to insufficient validation of user-supplied input in Win32k. A local user can pass specially crafted input to the application and gain elevated privileges on the target system.

3) Heap-based buffer overflow (CVE-ID: CVE-2024-30091)

The vulnerability allows a local user can 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.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30082
• https://www.zerodayinitiative.com/advisories/ZDI-24-609/
• https://www.zerodayinitiative.com/advisories/ZDI-24-608/
• https://www.zerodayinitiative.com/advisories/ZDI-24-1076/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30087
• https://www.zerodayinitiative.com/advisories/ZDI-24-605/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-30091