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From cf4753691dc55999373d1c576f62ecb298723420 Mon Sep 17 00:00:00 2001
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From: Remi Collet <remi@php.net>
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Date: Mon, 4 Aug 2014 10:42:39 +0200
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Subject: [PATCH] Fixed Bug #66901 php-gd 'c_color' NULL pointer dereference
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Upstream https://bitbucket.org/libgd/gd-libgd/commits/463c3bd09bfe8e924e19acad7a2a6af16953a704
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Notice: this fix don't manage monochrome/monovisual values
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but just fix the security issue CVE-2014-2497
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failing when trying to load such an image
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---
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ext/gd/libgd/gdxpm.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/ext/gd/libgd/gdxpm.c b/ext/gd/libgd/gdxpm.c
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index 73f86e5..b69414e 100644
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--- a/ext/gd/libgd/gdxpm.c
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+++ b/ext/gd/libgd/gdxpm.c
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@@ -31,12 +31,17 @@ gdImagePtr gdImageCreateFromXpm (char *filename)
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if (ret != XpmSuccess) {
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return 0;
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}
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+ number = image.ncolors;
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+ for(i = 0; i < number; i++) {
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+ if (!image.colorTable[i].c_color) {
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+ goto done;
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+ }
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+ }
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if (!(im = gdImageCreate(image.width, image.height))) {
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goto done;
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}
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- number = image.ncolors;
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colors = (int *) safe_emalloc(number, sizeof(int), 0);
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for (i = 0; i < number; i++) {
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switch (strlen (image.colorTable[i].c_color)) {
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--
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1.9.2
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