1 files changed, 48 insertions, 0 deletions

diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch
new file mode 100644
index 0000000000..9e930d3a42
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2016-7979.patch
@@ -0,0 +1,48 @@
+From 875a0095f37626a721c7ff57d606a0f95af03913 Mon Sep 17 00:00:00 2001
+From: Ken Sharp <ken.sharp@artifex.com>
+Date: Wed, 5 Oct 2016 10:10:58 +0100
+Subject: [PATCH] DSC parser - validate parameters
+
+Bug #697190 ".initialize_dsc_parser doesn't validate the parameter is a dict type before using it."
+
+Regardless of any security implications, its simply wrong for a PostScript
+operator not to validate its parameter(s).
+
+No differences expected.
+
+Upstream-Status: Backport
+CVE: CVE-2016-7979
+
+Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
+---
+ psi/zdscpars.c | 13 +++++++++----
+ 1 file changed, 9 insertions(+), 4 deletions(-)
+
+diff --git a/psi/zdscpars.c b/psi/zdscpars.c
+index c05e154..9b4b605 100644
+--- a/psi/zdscpars.c
++++ b/psi/zdscpars.c
+@@ -150,11 +150,16 @@ zinitialize_dsc_parser(i_ctx_t *i_ctx_p)
+     ref local_ref;
+     int code;
+     os_ptr const op = osp;
+-    dict * const pdict = op->value.pdict;
+-    gs_memory_t * const mem = (gs_memory_t *)dict_memory(pdict);
+-    dsc_data_t * const data =
+-        gs_alloc_struct(mem, dsc_data_t, &st_dsc_data_t, "DSC parser init");
++    dict *pdict;
++    gs_memory_t *mem;
++    dsc_data_t *data;
+ 
++    check_read_type(*op, t_dictionary);
++
++    pdict = op->value.pdict;
++    mem = (gs_memory_t *)dict_memory(pdict);
++
++    data = gs_alloc_struct(mem, dsc_data_t, &st_dsc_data_t, "DSC parser init");
+     if (!data)
+         return_error(gs_error_VMerror);
+     data->document_level = 0;
+-- 
+2.10.2
+