This update for ImageMagick fixes the following issues: Security issues fixed: - CVE-2017-9439: A memory leak was found in the function ReadPDBImage incoders/pdb.c - CVE-2017-9440: A memory leak was found in the function ReadPSDChannelin coders/psd.c - CVE-2017-9501: An assertion failure could cause a denial of service via a crafted file - CVE-2017-11403: ReadMNGImage function in coders/png.c has an out-of-order CloseBlob call, resulting in a use-after-free via acrafted file