SB2012041002 - Remote code execution in MSCOMCTL.OCX ActiveX control in Microsoft Office

Description

This security bulletin contains information about 1 security vulnerability.

1) Stack-based buffer overflow (CVE-ID: CVE-2012-0158)

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

The weakness exists due to stack-based buffer overflow in MSCOMCTL.OCX ActiveX control. A remote attacker can create a specially crafted Web page that passes an overly long string argument, trick the victim into viewing it, trigger memory corruption and execute arbitrary code with privileges of the current user.

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

Note: the vulnerability was being actively exploited.

Remediation

Install update from vendor's website.

References

• https://technet.microsoft.com/en-us/library/security/ms12-027
• https://technet.microsoft.com/en-us/library/security/ms12-060