Gentoo Linux Security Advisory GLSA 200903-12 - A vulnerability in OptiPNG might result in user-assisted execution of arbitrary code. Roy Tam reported a use-after-free vulnerability in the GIFReadNextExtension() function in lib/pngxtern/gif/gifread.c leading to a memory corruption when reading a GIF image. Versions less than 0.6.2-r1 are affected.
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