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php5.5994
php-CVE-2016-6911.patch
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File php-CVE-2016-6911.patch of Package php5.5994
Index: php-7.0.7/ext/gd/libgd/gd_io_dp.c =================================================================== --- php-7.0.7.orig/ext/gd/libgd/gd_io_dp.c 2016-10-20 12:04:44.348436415 +0200 +++ php-7.0.7/ext/gd/libgd/gd_io_dp.c 2016-10-20 12:06:10.917737410 +0200 @@ -233,6 +233,10 @@ static int dynamicGetbuf (gdIOCtxPtr ctx dctx = (dpIOCtxPtr) ctx; dp = dctx->dp; + if (dp->pos < 0 || dp->pos >= dp->realSize) { + return 0; + } + remain = dp->logicalSize - dp->pos; if (remain >= len) { rlen = len; @@ -243,6 +247,10 @@ static int dynamicGetbuf (gdIOCtxPtr ctx rlen = remain; } + if (dp->pos + rlen > dp->realSize) { + rlen = dp->realSize - dp->pos; + } + memcpy(buf, (void *) ((char *) dp->data + dp->pos), rlen); dp->pos += rlen;
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