Zero-Day Advisory

Multiple Vulnerabilities in Microsoft PowerPoint, Microsoft Office and Microsoft Server Service

Summary

Fortinet's FortiGuard Labs has discovered multiple vulnerabilities in Microsoft PowerPoint, Microsoft Office and Microsoft Server Service.

Solutions

Users should apply the solution provided by Microsoft.

Additional Information

There is a vulnerability in Microsoft PowerPoint. A remote attacker could construct a .ppt file with malformed bits. When users open this .ppt file, it will cause an improper memory access. If specially crafted, it can cause execution of arbitrary code.This vulnerability is due to incorrect manipulation of Microsoft PowerPoint's certain Record data.

There is a vulnerability in Microsoft Office. A remote attacker could construct an office file with a malformed string. When users open this office file, it will cause an improper memory access. If specially crafted, it can cause execution of arbitrary code.


There is a vulnerability in Microsoft Server Service. A remote attacker could crash the target system by constructing and sending a malformed message.
This service is running by default and the attack can be performed by anonymous user.This vulnerability is due toincorrectmanipulation of certain network message.

Acknowledgement

Dejun Meng of Fortinet Security Research Team

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.