ghostscript: fix several CVEs by adding bounds checking

CVE-2017-9611
CVE-2017-9612
CVE-2017-9739
CVE-2017-9726

(From OE-Core rev: 3e5d80c84f4c141bc3f3193d1db899b0e56993cf)

Signed-off-by: Joe Slater <jslater@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9611.patch b/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9611.patch
new file mode 100644
index 0000000000..58ef04d1fd
--- /dev/null
+++ b/meta/recipes-extended/ghostscript/ghostscript/CVE-2017-9611.patch
@@ -0,0 +1,34 @@
+From c7c55972758a93350882c32147801a3485b010fe Mon Sep 17 00:00:00 2001
+From: Chris Liddell <chris.liddell@artifex.com>
+Date: Mon, 12 Jun 2017 13:08:40 +0100
+Subject: [PATCH] Bug 698024: bounds check zone pointer in Ins_MIRP()
+
+---
+ base/ttinterp.c |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- end of original header
+
+CVE: CVE-2017-9611
+
+Upstream-Status: Backport [git://git.ghostscript.com/ghostpdl.git]
+
+Signed-off-by: Joe Slater <joe.slater@windriver.com>
+
+diff --git a/base/ttinterp.c b/base/ttinterp.c
+index e56aec6..f6a6d95 100644
+--- a/base/ttinterp.c
++++ b/base/ttinterp.c
+@@ -3858,7 +3858,8 @@ static int nInstrCount=0;
+     /* XXX: UNDOCUMENTED! cvt[-1] = 0 always */
+ 
+     if ( BOUNDS( args[0],   CUR.zp1.n_points ) ||
+-         BOUNDS( args[1]+1, CUR.cvtSize+1 )    )
++         BOUNDS( args[1]+1, CUR.cvtSize+1 )    ||
++         BOUNDS(CUR.GS.rp0,  CUR.zp0.n_points) )
+     {
+       CUR.error = TT_Err_Invalid_Reference;
+       return;
+-- 
+1.7.9.5
+