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* gnu/packages/image.scm (freeimage)[source]: Add patch. * gnu/packages/patches/freeimage-CVE-2016-5684.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it.
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From: Debian Science Maintainers
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<debian-science-maintainers@lists.alioth.debian.org>
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Date: Mon, 10 Oct 2016 08:22:44 +0100
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Subject: CVE-2016-5684
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---
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Source/FreeImage/PluginXPM.cpp | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/Source/FreeImage/PluginXPM.cpp b/Source/FreeImage/PluginXPM.cpp
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index a698321..cc7bd07 100644
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--- a/Source/FreeImage/PluginXPM.cpp
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+++ b/Source/FreeImage/PluginXPM.cpp
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@@ -181,6 +181,11 @@ Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
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}
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free(str);
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+ // check info string
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+ if((width <= 0) || (height <= 0) || (colors <= 0) || (cpp <= 0)) {
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+ throw "Improperly formed info string";
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+ }
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+
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if (colors > 256) {
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dib = FreeImage_AllocateHeader(header_only, width, height, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
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} else {
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@@ -193,7 +198,7 @@ Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
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FILE_RGBA rgba;
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str = ReadString(io, handle);
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- if(!str)
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+ if(!str || (strlen(str) < (size_t)cpp))
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throw "Error reading color strings";
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std::string chrs(str,cpp); //create a string for the color chars using the first cpp chars
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