Fortinet Discovers ImageMagick libxml2 Denial Of Service Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a Denial Of Service Vulnerability in ImageMagick.

ImageMagick is a free and open-source software suite for displaying, converting, and editing raster image and vector image files. It can read and write over 200 image file formats.

ImageMagick is susceptible to a Denial Of Service vulnerability. Denial of service on the server side running vulnerable ImageMagick can be triggered upon successful exploitation of the vulnerability.

Solutions

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

ImageMagick.Convert.LibXML.DoS
Released Oct 29, 2019

Users should apply patch provided by ImageMagick

Timeline

Fortinet reported the vulnerability to ImageMagick on 21 October, 2019. 

ImageMagick confirmed the vulnerability on 23 October, 2019. 

ImageMagick released patch for the vulnerability on 27 October, 2019.

Acknowledgement

This vulnerability was discovered by Nguyen Thanh Nguyen of Fortinet's FortiGuard Labs.

References

• https://github.com/ImageMagick/ImageMagick/commit/ec9c8944af2bfc65c697ca44f93a727a99b405f1
• CVE-2019-18853

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.