opnsense-ports/graphics/freeimage/files/patch-Source-FreeImage-PluginXPM.cpp
Franco Fichtner de6a699e83 */*: sync with upstream
Taken from: HardenedBSD
2018-04-15 23:00:06 +02:00

23 lines
805 B
C++

--- Source/FreeImage/PluginXPM.cpp.orig 2013-11-29 19:29:14 UTC
+++ Source/FreeImage/PluginXPM.cpp
@@ -181,6 +181,11 @@ Load(FreeImageIO *io, fi_handle handle,
}
free(str);
+ // check info string
+ if((width <= 0) || (height <= 0) || (colors <= 0) || (cpp <= 0)) {
+ throw "Improperly formed info string";
+ }
+
if (colors > 256) {
dib = FreeImage_AllocateHeader(header_only, width, height, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
} else {
@@ -193,7 +198,7 @@ Load(FreeImageIO *io, fi_handle handle,
FILE_RGBA rgba;
str = ReadString(io, handle);
- if(!str)
+ if(!str || (strlen(str) < (size_t)cpp))
throw "Error reading color strings";
std::string chrs(str,cpp); //create a string for the color chars using the first cpp chars