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From: Chris Liddell <chris.liddell@artifex.com>
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Date: Wed, 20 Feb 2019 09:54:28 +0000 (+0000)
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Subject: Bug 700576: Make a transient proc executeonly (in DefineResource).
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Bug 700576: Make a transient proc executeonly (in DefineResource).
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This prevents access to .forceput
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Solution originally suggested by cbuissar@redhat.com.
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https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=ed9fcd95bb01f0768bf273b2526732e381202319
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From: Chris Liddell <chris.liddell@artifex.com>
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Date: Fri, 22 Feb 2019 12:28:23 +0000 (+0000)
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Subject: Bug 700576(redux): an extra transient proc needs executeonly'ed.
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Bug 700576(redux): an extra transient proc needs executeonly'ed.
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https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=a82601e8f95a2f2147f3b3b9e44ec2b8f3a6be8b
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---
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diff -up ghostscript-9.07/Resource/Init/gs_res.ps.cve-2019-3838 ghostscript-9.07/Resource/Init/gs_res.ps
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--- ghostscript-9.07/Resource/Init/gs_res.ps.cve-2019-3838 2019-02-28 12:08:09.181546939 +0100
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+++ ghostscript-9.07/Resource/Init/gs_res.ps 2019-02-28 12:09:32.410456904 +0100
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@@ -425,7 +425,7 @@ status {
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% so we have to use .forcedef here.
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/.Instances 1 index .forcedef % Category dict is read-only
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} executeonly if
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- }
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+ } executeonly
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{ .LocalInstances dup //.emptydict eq
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{ pop 3 dict localinstancedict Category 2 index put
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}
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@@ -437,7 +437,7 @@ status {
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% Now make the resource value read-only.
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0 2 copy get { readonly } .internalstopped pop
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dup 4 1 roll put exch pop exch pop
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- }
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+ } executeonly
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{ /defineresource cvx /typecheck signaloperror
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}
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ifelse
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