SB2017041207 - Two privilege escalation vulnerabilities in Microsoft GDI

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Privilege escalation (CVE-ID: CVE-2017-0156)

The vulnerability allows a local user to escalate his privileges.

The vulnerability exists due to an error within Microsoft Graphics Component (GDI) implementation when handling objects in memory. A local user can execute arbitrary code on the target system with SYSTEM privileges.

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

2) Privilege escalation (CVE-ID: CVE-2017-0155)

The vulnerability allows a local user to escalate his privileges.

The vulnerability exists due to an error within Microsoft Graphics Component (GDI) implementation when handling objects in memory. A local user can execute arbitrary code on the target system with SYSTEM privileges.

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

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0156
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0155