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php-5.1.2-CVE-2007-3475.patch
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File php-5.1.2-CVE-2007-3475.patch of Package php
--- ext/gd/libgd/gd_gif_in.c +++ ext/gd/libgd/gd_gif_in.c @@ -125,6 +125,7 @@ gdImagePtr im = 0; ZeroDataBlock = FALSE; + int haveGlobalColormap; /*1.4//imageNumber = 1; */ if (! ReadOK(fd,buf,6)) { @@ -150,11 +151,12 @@ imw = LM_to_uint(buf[0],buf[1]); imh = LM_to_uint(buf[2],buf[3]); - if (BitSet(buf[4], LOCALCOLORMAP)) { /* Global Colormap */ - if (ReadColorMap(fd, BitPixel, ColorMap)) { - return 0; - } - } + haveGlobalColormap = BitSet(buf[4], LOCALCOLORMAP); /* Global Colormap */ + if (haveGlobalColormap) { + if (ReadColorMap(fd, BitPixel, ColorMap)) { + return 0; + } + } for (;;) { if (! ReadOK(fd,&c,1)) { return 0; @@ -192,12 +194,17 @@ im->interlace = BitSet(buf[8], INTERLACE); if (! useGlobalColormap) { if (ReadColorMap(fd, bitPixel, localColorMap)) { + gdImageDestroy(im); return 0; } ReadImage(im, fd, imw, imh, localColorMap, BitSet(buf[8], INTERLACE)); /*1.4//imageCount != imageNumber); */ } else { + if (!haveGlobalColormap) { + gdImageDestroy(im); + return 0; + } ReadImage(im, fd, imw, imh, ColorMap, BitSet(buf[8], INTERLACE));
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