Multiple vulnerabilities has been found and corrected in libtiff: Buffer underflow in the LZWDecodeCompat function in libtiff 3.8.2 allows context-dependent attackers to cause a denial of service via a crafted TIFF image, a different vulnerability than CVE-2008-2327 . Fix several places in tiff2rgba and rgb2ycbcr that were being careless about possible integer overflow in calculation of buffer sizes . This update provides fixes for these vulnerabilities.