SB2019091110 - Information disclosure in Microsoft Windows DirectWrite

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2019-1245)

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

The vulnerability exists due to a boundary condition within DirectWrite. A remote attacker can trick a victim to open a specially crafted document, trigger out-of-bounds read error and read contents of memory on the system.

2) Out-of-bounds read (CVE-ID: CVE-2019-1251)

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

The vulnerability exists due to a boundary condition within DirectWrite. A remote attacker can trick a victim to open a specially crafted document, trigger out-of-bounds read error and read contents of memory on the system.

3) Out-of-bounds read (CVE-ID: CVE-2019-1244)

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

The vulnerability exists due to a boundary condition within DirectWrite. A remote attacker can trick a victim to open a specially crafted document, 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-2019-1245
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1251
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1244