cups/cups-CVE-2008-1373.patch

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diff -up cups-1.3.6/filter/image-gif.c.CVE-2008-1373 cups-1.3.6/filter/image-gif.c
--- cups-1.3.6/filter/image-gif.c.CVE-2008-1373 2008-01-14 22:12:58.000000000 +0000
+++ cups-1.3.6/filter/image-gif.c 2008-04-01 16:43:22.000000000 +0100
@@ -38,6 +38,8 @@
#define GIF_INTERLACE 0x40
#define GIF_COLORMAP 0x80
+#define MAX_LWZ_BITS 12
+
typedef cups_ib_t gif_cmap_t[256][4];
typedef short gif_table_t[4096];
@@ -465,6 +467,9 @@ gif_read_image(FILE *fp, /* I -
if (!pixels)
return (-1);
+ if (code_size > MAX_LWZ_BITS)
+ return (-1);
+
if (gif_read_lzw(fp, 1, code_size) < 0)
{
free(pixels);