Zero-Day Advisory

Fortinet Discovers Adobe DNG Converter Memory Corruption Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Adobe DNG Converter.

The Adobe DNG Converter is a free utility that enables you to easily convert camera-specific raw files from more than 600 cameras to the more universal DNG raw format. DNG allows photographers to archive their raw camera files in a single format for easy cataloging and access in the future.

A memory corruption vulnerability has been discovered in Adobe DNG Converter. The vulnerability can be triggered by a crafted SRW file which causes an out-of-bounds write, due to improper bounds checking. Successful exploitation of this vulnerability could grant an attacker remote code execution.

Solutions

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

Adobe.DNG.Converter.SRW.File.Memory.Corruption
Released Nov 10, 2017

Users should apply the solution provided by Adobe.

Additional Information

Fortinet reported the vulnerability to Adobe on May 12, 2017.

Adobe confirmed the vulnerability on Aug. 28, 2017.

Adobe patched the vulnerability on Nov. 14, 2017.

References

• https://helpx.adobe.com/security/products/dng-converter/apsb17-37.html

• CVE-2017-11295

Acknowledgement

This vulnerability was discovered by Kushal Arvind Shah 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.