Fortinet Discovers Microsoft Office Word Use After Free Vulnerability
Fortinet's FortiGuard Labs has discovered a use after free vulnerability in Microsoft Office Word.
Microsoft Office is an office suite of applications, servers and services. It was first announced by Microsoft in 1988. The first version of Office contained Microsoft Word, Microsoft Excel and Microsoft PowerPoint. Over the years, Office applications have grown substantially closer with shared features such as a common spell checker, OLE data integration and Visual Basic for Applications scripting language. Microsoft also positions Office as a development platform for line-of-business software under the Office Business Applications brand.
A use after free vulnerability has been discovered in Microsoft Office Word. The vulnerability exists due to an error while the vulnerable software attempts to open a specially crafted Microsoft Word file. It could lead to remote code execution.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released Oct 04, 2015
Users should apply the solution provided by Microsoft.
According to Microsoft, this vulnerability discovered by Fortinet is associated with the vulnerability CVE-2015-1683, which was ever patched in MS15-046 on May 12, June 9 in 2015. However, those patches are incomplete. So Microsoft re-released a new patch to comprehensively fix the issues associated with CVE-2015-1683 on October 13.
This vulnerability was discovered by Kai Lu of Fortinet's FortiGuard Labs.