The iwgif_read_image function in imagew-gif.c in libimageworsener.a in ImageWorsener 1.3.0 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted file.Referenceshttps://blogs.gentoo.org/ago/2017/04/17/imageworsener-divide-by-zero-in-iwgif_record_pixel-imagew-gif-c/https://security.gentoo.org/glsa/201706-06https://github.com/jsummers/imageworsener/commit/ca3356eb49fee03e2eaf6b6aff826988c1122d93https://github.com/jsummers/imageworsener/issues/15
