Added security patch for CVE-2016-7977 (bug #1380415)

ghostscript-9.20-cve-2016-7977.patch

@@ -0,0 +1,28 @@
+From 8abd22010eb4db0fb1b10e430d5f5d83e015ef70 Mon Sep 17 00:00:00 2001
+From: Chris Liddell <chris.liddell@artifex.com>
+Date: Mon, 3 Oct 2016 01:46:28 +0100
+Subject: [PATCH] Bug 697169: Be rigorous with SAFER permissions
+
+Once we've opened our input file from the command line, enforce the SAFER
+rules.
+---
+ psi/zfile.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/psi/zfile.c b/psi/zfile.c
+index b6caea2..2c6c958 100644
+--- a/psi/zfile.c
++++ b/psi/zfile.c
+@@ -1081,6 +1081,9 @@ lib_file_open(gs_file_path_ptr  lib_path, const gs_memory_t *mem, i_ctx_t *i_ctx
+     gs_main_instance *minst = get_minst_from_memory(mem);
+     int code;
+ 
++    if (i_ctx_p && starting_arg_file)
++        i_ctx_p->starting_arg_file = false;
++
+     /* when starting arg files (@ files) iodev_default is not yet set */
+     if (iodev == 0)
+         iodev = (gx_io_device *)gx_io_device_table[0];
+-- 
+2.7.4
+

ghostscript.spec

@@ -5,7 +5,7 @@ Summary: A PostScript interpreter and renderer
 Name: ghostscript
 Version: %{gs_ver}
 
-Release: 3%{?dist}
+Release: 4%{?dist}
 
 # Included CMap data is Redistributable, no modification permitted,
 # see http://bugzilla.redhat.com/487510
@@ -26,6 +26,7 @@ Patch5: ghostscript-9.20-cve-2016-7979.patch
 Patch6: ghostscript-9.20-cve-2016-7976.patch
 Patch7: ghostscript-9.20-cve-2016-7978.patch
 Patch8: ghostscript-9.20-cve-2016-8602.patch
+Patch9: ghostscript-9.20-cve-2016-7977.patch
 
 Requires: %{name}-core%{?_isa} = %{version}-%{release}
 Requires: %{name}-x11%{?_isa} = %{version}-%{release}
@@ -139,6 +140,9 @@ rm -rf expat freetype icclib jasper jpeg jpegxr lcms lcms2 libpng openjpeg zlib
 # Check for sufficient params in .sethalftone5 (bug #1383940):
 %patch8 -p1
 
+# Honor -dSAFER in .libfile (bug #1380415):
+%patch9 -p1
+
 # Convert manual pages to UTF-8
 from8859_1() {
         iconv -f iso-8859-1 -t utf-8 < "$1" > "${1}_"
@@ -335,6 +339,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/libgs.so
 
 %changelog
+* Tue Nov  1 2016 David Kaspar [Dee'Kej] <dkaspar@redhat.com> - 9.20-4
+- Added security fix for CVE-2016-7977 (bug #1380415)
+
 * Tue Nov  1 2016 David Kaspar [Dee'Kej] <dkaspar@redhat.com> - 9.20-3
 - Added security fix for CVE-2016-8602 (bug #1383940)