SB2018061220 - Multiple vulnerabilities in Microsoft Windows Kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Privilege escalation (CVE-ID: CVE-2018-8224)

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper handling of objects in memory by the Windows kernel. A local attacker can run a specially crafted application, trigger memory corruption and execute arbitrary code in kernel mode.

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

2) Information disclosure (CVE-ID: CVE-2018-8207)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to improper handling of objects in memory by the Windows kernel. A local attacker can run a specially crafted application, trigger memory corruption and gain access to potentially sensitive information.

3) Information disclosure (CVE-ID: CVE-2018-8121)

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to improper initializing of objects in memory by the Windows kernel. A local attacker can run a specially crafted application, trigger memory corruption and gain access to potentially sensitive information.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8224
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8207
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8121