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HTMLDOC v1.9.18 contains a buffer overflow in parsepre function,ps-pdf.cxx:5681.
Buffer overflow in the setpagesize function in util.cxx in HTMLDOC 1.8.27 and earlier allows context-dependent attackers to execute arbitrary code via a long MEDIA SIZE comment. NOTE: it was later reported that there were additional vectors in htmllib.cxx and ps-pdf.cxx using an AFM font file with a long glyph name, but these vectors do not cross privilege boundaries.