[Poppler-bugs] [Bug 103174] New: LZW decompression can fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103174

            Bug ID: 103174
           Summary: LZW decompression can fail
           Product: poppler
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
          Assignee: poppler-bugs at lists.freedesktop.org
          Reporter: k.dohmann at gmx.net

The LZW decompression in Stream.cc / Stream.h uses a dictionary table with the
fixed size of 4096 entries. But the compression is not per definition limited
to this size. I have seen PDF files with tables up to a size of 32k entries.
The resulting decompression failure of course results in rendering issues.

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