SB2019121014 - Multiple vulnerabilities in Microsoft Windows and Windows Server

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2019-1469)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the win32k component. A local user can use a specially crafted application to trigger out-of-bounds read error and read contents of memory on the system.

2) Input validation error (CVE-ID: CVE-2019-1468)

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

The vulnerability exists due to insufficient validation of user-supplied input within the Windows font library when processing specially crafted embedded fonts. A local attacker can trick the victim to open a specially crafted document or visit a website and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1469
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1468