https://bz.apache.org/bugzilla/show_bug.cgi?id=61300
Bug ID: 61300
Summary: Very slow processing on corrupted file
Product: POI
Version: 3.17-dev
Hardware: PC
Status: NEW
Severity: minor
Priority: P2
Component: POIFS
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 35141
--> https://bz.apache.org/bugzilla/attachment.cgi?id=35141&action=edit
triggering file
I need to figure out if this is a POIFs bug or a parseSummaries bug. This is
triggered by a corrupted file.
At this location:
at org.apache.poi.util.IOUtils.copy(IOUtils.java:296)
at org.apache.poi.util.IOUtils.peekFirstNBytes(IOUtils.java:64)
at
org.apache.poi.hpsf.PropertySet.isPropertySetStream(PropertySet.java:393)
at org.apache.poi.hpsf.PropertySet.<init>(PropertySet.java:191)
at
org.apache.tika.parser.microsoft.SummaryExtractor.parseSummaryEntryIfExists(SummaryExtractor.java:83)
at
org.apache.tika.parser.microsoft.SummaryExtractor.parseSummaries(SummaryExtractor.java:73)
while((count = inp.read(buff)) != -1) {
if(count > 0) {
out.write(buff, 0, count);
}
}
On the first iteration, the pos in inp is 0, but then the pos goes negative on
each iteration, and this loop iterates for a very long time.
The source file that I corrupted is: testEXCEL_embeddedPDF_windows.xls
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