The _rsvg_css_normalize_font_size function in librsvg 2.40.2 allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via circular definitions in an SVG document.
lists.opensuse.org/opensuse-updates/2016-05/msg00079.html
www.debian.org/security/2016/dsa-3584
www.openwall.com/lists/oss-security/2016/04/28/4
www.openwall.com/lists/oss-security/2016/04/28/7
www.openwall.com/lists/oss-security/2016/04/30/3
www.openwall.com/lists/oss-security/2016/05/10/15
git.gnome.org/browse/librsvg/commit/?id=d1c9191949747f6dcfd207831d15dd4ba00e31f2