Multiple integer overflows in libgd in PHP before 5.2.4 allow remote
attackers to cause a denial of service (application crash) and
possibly execute arbitrary code via a large (1) srcW or (2) srcH value
to the (a) gdImageCopyResized function, or a large (3) sy (height) or
(4) sx (width) value to the (b) gdImageCreate or the (c)
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