ghostscript/ghostscript-cve-2019-10216.patch
2019-08-12 15:42:15 +02:00

44 lines
1.5 KiB
Diff

From 5b85ddd19a8420a1bd2d5529325be35d78e94234 Mon Sep 17 00:00:00 2001
From: Chris Liddell <chris.liddell@artifex.com>
Date: Fri, 2 Aug 2019 15:18:26 +0100
Subject: Bug 701394: protect use of .forceput with executeonly
diff --git a/Resource/Init/gs_type1.ps b/Resource/Init/gs_type1.ps
index 6c7735bc0c..a039ccee35 100644
--- a/Resource/Init/gs_type1.ps
+++ b/Resource/Init/gs_type1.ps
@@ -118,25 +118,25 @@
( to be the same as glyph: ) print 1 index //== exec } if
3 index exch 3 index .forceput
% scratch(string) RAGL(dict) AGL(dict) CharStrings(dict) cstring gname
- }
+ }executeonly
{pop} ifelse
- } forall
+ } executeonly forall
pop pop
- }
+ } executeonly
{
pop pop pop
} ifelse
- }
+ } executeonly
{
% scratch(string) RAGL(dict) AGL(dict) CharStrings(dict) cstring gname
pop pop
} ifelse
- } forall
+ } executeonly forall
3 1 roll pop pop
- } if
+ } executeonly if
pop
dup /.AGLprocessed~GS //true .forceput
- } if
+ } executeonly if
%% We need to excute the C .buildfont1 in a stopped context so that, if there
%% are errors we can put the stack back sanely and exit. Otherwise callers won't