SB2016051005 - Two remote code execution vulnerabilities in Microsoft JScript and VBScript

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2016-0189)

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

The weakness exists due to boundary error in the Scripting Engine when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

2) Memory corruption (CVE-ID: CVE-2016-0187)

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

The weakness exists due to boundary error in the Scripting Engine when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://technet.microsoft.com/en-us/library/security/ms16-051.aspx
• https://technet.microsoft.com/en-us/library/security/ms16-053.aspx