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-rw-r--r--gnu/packages/patches/ghostscript-CVE-2016-8602.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/gnu/packages/patches/ghostscript-CVE-2016-8602.patch b/gnu/packages/patches/ghostscript-CVE-2016-8602.patch
new file mode 100644
index 0000000000..aaf20b6c6c
--- /dev/null
+++ b/gnu/packages/patches/ghostscript-CVE-2016-8602.patch
@@ -0,0 +1,47 @@
+The following patch was adapted for GNU Ghostscript
+by Mark H Weaver <mhw@netris.org> based on:
+
+http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=f5c7555c30393e64ec1f5ab0dfae5b55b3b3fc78
+
+From f5c7555c30393e64ec1f5ab0dfae5b55b3b3fc78 Mon Sep 17 00:00:00 2001
+From: Chris Liddell <chris.liddell@artifex.com>
+Date: Sat, 8 Oct 2016 16:10:27 +0100
+Subject: [PATCH] Bug 697203: check for sufficient params in .sethalftone5
+
+and param types
+---
+ psi/zht2.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/psi/zht2.c b/psi/zht2.c
+index fb4a264..dfa27a4 100644
+--- a/psi/zht2.c
++++ b/psi/zht2.c
+@@ -82,14 +82,22 @@ zsethalftone5(i_ctx_t *i_ctx_p)
+ gs_memory_t *mem;
+ uint edepth = ref_stack_count(&e_stack);
+ int npop = 2;
+- int dict_enum = dict_first(op);
++ int dict_enum;
+ ref rvalue[2];
+ int cname, colorant_number;
+ byte * pname;
+ uint name_size;
+ int halftonetype, type = 0;
+ gs_state *pgs = igs;
+- int space_index = r_space_index(op - 1);
++ int space_index;
++
++ if (ref_stack_count(&o_stack) < 2)
++ return_error(e_stackunderflow);
++ check_type(*op, t_dictionary);
++ check_type(*(op - 1), t_dictionary);
++
++ dict_enum = dict_first(op);
++ space_index = r_space_index(op - 1);
+
+ mem = (gs_memory_t *) idmemory->spaces_indexed[space_index];
+
+--
+2.9.1
+