Fortinet Discovers Drupal SVG Sanitizer Module Denial Of Service Bypass Vulnerability
Fortinet's FortiGuard Labs has discovered a Denial Of Service vulnerability in SVG Sanitizer Module Drupal.
SVG Sanitizer module registers the SVG Sanitizer with Drupal's library api module. It also makes an SVG Sanitizer field formatter available for image (D7 only), SVG icon (D8 only) and file fields that will attempt to remove non-whitelisted SVG attributes and tags and display the contents of the SVG file.
A Denial Of Service vulnerability exists in the SVG Sanitizer module for Drupal from version 8.x to 1.0-alpha1 and below. Denial of service of user browser occurs upon successful exploitation of the vulnerability.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released Oct 28, 2019
Users should apply patch provided by SVG Sanitizer
Fortinet reported the vulnerability to SVG Sanitizer
This vulnerability was discovered by Nguyen Thanh Nguyen of Fortinet's FortiGuard Labs.