This update for librsvg to version 2.40.21 fixes the following issues:
librsvg was updated to version 2.40.21 fixing the following issues:
CVE-2019-20446: Fixed an issue where a crafted SVG file with nested
patterns can cause denial of service (bsc#1162501).
NOTE: Librsvg now has limits on the number of loaded XML elements,
and the number of referenced elements within an SVG document.
Fixed a stack exhaustion with circular references in <use>
elements.
Fixed a denial-of-service condition from exponential explosion
of rendered elements, through nested use of SVG 'use' elements in
malicious SVGs.