Index: src/java/org/apache/poi/poifs/property/NPropertyTable.java
===================================================================
--- src/java/org/apache/poi/poifs/property/NPropertyTable.java	(revision 1229559)
+++ src/java/org/apache/poi/poifs/property/NPropertyTable.java	(working copy)
@@ -89,7 +89,15 @@
                 bb.array().length == bigBlockSize.getBigBlockSize()) {
              data = bb.array();
           } else {
-             data = new byte[bigBlockSize.getBigBlockSize()];
+             /*
+              * This was originally bigBlockSize.getBigBlockSize(). 
+              * A user reported a file, where the buffer would contain less
+              * bytes. The file was corrupted, yet this hack allowed it
+              * to be processed correctly. 
+              */
+             int dataSize = bigBlockSize.getBigBlockSize() <= bb.remaining() ?
+                bigBlockSize.getBigBlockSize() : bb.remaining();
+             data = new byte[dataSize];
              bb.get(data, 0, data.length);
           }