Two vulnerabilities have been identified in LibTIFF, which could be exploited by remote attackers to cause a denial of service or compromise a vulnerable system. These issues are caused by integer overflow errors in the inter-color spaces conversion tools when computing the size of the required raster buffer in the "tiffcvt()" [tools/rgb2ycbcr.c] and "cvt_whole_image()" [tools/tiff2rgba.c] functions, which could be exploited by attackers to crash an affected tool or execute arbitrary code via a specially crafted TIFF file.
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