SB2018021310 - Remote code execution in Microsoft Internet Explorer

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2018-0866)

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

The vulnerability exists due to improper handling of objects in memory by the scripting engine. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

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

2) Memory corruption (CVE-ID: CVE-2018-0840)

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

The vulnerability exists due to improper handling of objects in memory by the scripting engine in Microsoft browsers. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

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

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0866
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840