SB2019041005 - Multiple vulnerabilities in Microsoft Windows GDI

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2019-0849)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing untrusted data within the Windows GDI component. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger out-of-bounds read error and read contents of uninitialized memory on the system.

2) Buffer overflow (CVE-ID: CVE-2019-0853)

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

The vulnerability exists due to a boundary error within the Windows Graphics Device Interface (GDI) when processing documents. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Out-of-bounds read (CVE-ID: CVE-2019-0802)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Windows GDI component when processing untrusted data. A remote attacker can create a specially crafted document, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0849
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0853
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0802