SB2023011086 - Multiple vulnerabilities in Microsoft Windows GDI

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Race condition (CVE-ID: CVE-2023-21532)

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

The vulnerability exists due to a race condition in Windows GDI. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-21552)

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

The vulnerability exists due to application does not properly impose security restrictions in Windows GDI, which leads to security restrictions bypass and privilege escalation.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21532
• https://www.zerodayinitiative.com/advisories/ZDI-23-113/
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21552