Zero-Day Advisory

Fortinet Discovers Adobe InDesign CC Memory Corruption Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a Memory Corruption vulnerability in Adobe InDesign CC.

Adobe InDesign CC is a desktop publishing software produced by Adobe Systems. It can be used to create works such as posters, flyers, brochures, magazines, newspapers, presentations, books and e-books. InDesign CC can also publish content suitable for tablet devices in conjunction with Adobe Digital Publishing Suite. Graphic designers and production artists are the principal users, creating and laying out periodical publications, posters, and print media. It also supports export to EPUB and SWF formats to create e-books and digital publications, including digital magazines, and content suitable for consumption on tablet computers. In addition, InDesign CC supports XML, style sheets, and other coding markup, making it suitable for exporting tagged text content for use in other digital and online formats.

A critical memory corruption vulnerability exists in Adobe InDesign CC. It is caused by unsafe parsing of a specially crafted .inx file. Successful exploitation of this vulnerability could lead to arbitrary code execution.

Solutions

FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Adobe.InDesign.CC.inx.File.Memory.Corruption
Released Jan 16, 2018

Users should apply the solution provided by Adobe Systems.

Timeline

Fortinet reported the vulnerability to Adobe Systems on November 6, 2017.

Adobe Systems confirmed the vulnerability on January 9, 2018.

Adobe Systems patched the vulnerability on April 10, 2018.

References

• https://helpx.adobe.com/security/products/indesign/apsb18-11.html
  

• CVE-2018-4928

Acknowledgement

This vulnerability was discovered by Honggang Ren of Fortinet's FortiGuard Labs.

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.