https://bugs.freedesktop.org/show_bug.cgi?id=87977

            Bug ID: 87977
           Summary: FILEOPEN: embedded DOCX object in DOCX causing crash
                    when double-clicking on it
           Product: LibreOffice
           Version: 4.3.4.1 release
          Hardware: x86-64 (AMD64)
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: [email protected]
          Reporter: [email protected]

Created attachment 111665
  --> https://bugs.freedesktop.org/attachment.cgi?id=111665&action=edit
DOCX causing crash (confidential contents stripped)

Steps to reproduce:
1. Open attached document.
2. Double-click the lower object, labeled Object 1, which is displaying a plug
symbol (in Linux) or a strange violet symbol (on Windows).
3. Observe crash.

In Windows, I get a Fatal Error dialog with 'Access violation - no RTTI data!'.
With version 4.5 on Linux, the document crashed on opening.

Document was confidential, but I managed to bisect its xml and file contents to
the bare minimum while retaining the crashy behavior.

I have to say that the original document was "more crashy", it that one did not
have to click the plug object. It was enough to simply wait for a bit.

The problem resides inside the embedded .docx, specifically in the footer and
header .xmls.
I could not pinpoint the problem to a certain header or footer xml, but had to
keep them all.

Originally noticed on 4.3.4. Now tested on:

Win 7 64-bit:

4.3.5.2

and

Version: 4.5.0.0.alpha0+
Build ID: 57626f2132f73e4e42b31e364b25c5867336e718
TinderBox: Win-x86@42, Branch:master, Time: 2014-12-26_09:26:33

Ubuntu 14.10 64-bit:

Version: 4.5.0.0.alpha0+
Build ID: f92183833fa569006602ac7e93c906d2094e0d4d
TinderBox: Linux-rpm_deb-x86_64@46-TDF-dbg, Branch:master, Time:
2014-12-14_00:21:45

and

Version: 4.3.3.2
Build ID: 430m0(Build:2)

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