See: http://www.cups.org/str.php?L3914 for details.

Index: filter/image-gif.c

===================================================================

--- filter/image-gif.c (revision 9862)

+++ filter/image-gif.c (working copy)

@@ -648,11 +648,13 @@

if (code == max_code)

{

- *sp++ = firstcode;

- code = oldcode;

+ if (sp < (stack + 8192))

+ *sp++ = firstcode;

+

+ code = oldcode;

}

- while (code >= clear_code)

+ while (code >= clear_code && sp < (stack + 8192))

{

*sp++ = table[1][code];

if (code == table[0][code])

@@ -661,9 +663,11 @@

code = table[0][code];

}

- *sp++ = firstcode = table[1][code];

- code = max_code;

+ if (sp < (stack + 8192))

+ *sp++ = firstcode = table[1][code];

+ code = max_code;

+

if (code < 4096)

{

table[0][code] = oldcode;