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Posted to dev@poi.apache.org by bu...@apache.org on 2018/08/14 19:00:21 UTC

[Bug 62625] New: Regression in VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

            Bug ID: 62625
           Summary: Regression in VBAMacroReader in 4.0.0-SNAPSHOT,
                    unexpected reserved byte
           Product: POI
           Version: 4.0-dev
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: POI Overall
          Assignee: dev@poi.apache.org
          Reporter: tallison@mitre.org
  Target Milestone: ---

Created attachment 36092
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=36092&action=edit
triggering document

New exception in 4.0.0-SNAPSHOT.


Caused by: java.io.IOException: Expected 3eafter name before Unicode name, but
found: d
        at
org.apache.poi.poifs.macros.VBAMacroReader.readStringPair(VBAMacroReader.java:555)
        at
org.apache.poi.poifs.macros.VBAMacroReader.processDirStream(VBAMacroReader.java:488)

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

--- Comment #4 from PJ Fanning <fa...@yahoo.com> ---
The recent code changes seem to have introduced a number of new warnings in
https://lgtm.com/projects/g/apache/poi/alerts/?mode=list and in FindBugs output
(see the spike in https://builds.apache.org/view/P/view/POI/job/POI-DSL-1.8/)

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

Tim Allison <ta...@mitre.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #5 from Tim Allison <ta...@mitre.org> ---
Doh. Fixing now.  Thank you.

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

--- Comment #3 from Tim Allison <ta...@mitre.org> ---
To clarify, this wasn't a regression.  This was a bug that became apparent with
better exception handling.

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

--- Comment #7 from Tim Allison <ta...@mitre.org> ---
And fix made to ensure closing of streams from lgtm.  Thank you, again, PJ.

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

Tim Allison <ta...@mitre.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Regression in               |VBAMacroReader in
                   |VBAMacroReader in           |4.0.0-SNAPSHOT, unexpected
                   |4.0.0-SNAPSHOT, unexpected  |reserved byte
                   |reserved byte               |

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[Bug 62625] Regression in VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

Tim Allison <ta...@mitre.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Tim Allison <ta...@mitre.org> ---
r1845238

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[Bug 62625] Regression in VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

Tim Allison <ta...@mitre.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|                            |All

--- Comment #1 from Tim Allison <ta...@mitre.org> ---
See decalage's note:
https://github.com/decalage2/oletools/blob/master/oletools/olevba.py#L1516

# According to [MS-OVBA] 2.3.4.2.2.2 REFERENCENAME Record:
# "Reserved (2 bytes): MUST be 0x003E. MUST be ignored."
# So let's ignore it, otherwise it crashes on some files (issue #132)
# PR #135 by @c1fe:
# contrary to the specification I think that the unicode name
# is optional. if reference_reserved is not 0x003E I think it
# is actually the start of another REFERENCE record
# at least when projectsyskind_syskind == 0x02 (Macintosh)

Sometimes REFERENCENAME only has an ascii part, contrary to the spec.

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[Bug 62625] VBAMacroReader in 4.0.0-SNAPSHOT, unexpected reserved byte

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62625

Tim Allison <ta...@mitre.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Tim Allison <ta...@mitre.org> ---
One dodgy loop fixed.  Added other sanity checks.  Thank you, PJ!

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