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Jukka Zitting commented on TIKA-216: ------------------------------------ For the record, see a similar issue in the Aperture project: http://sourceforge.net/tracker/?func=detail&aid=2786554&group_id=150969&atid=779500 > Zip bomb prevention > ------------------- > > Key: TIKA-216 > URL: https://issues.apache.org/jira/browse/TIKA-216 > Project: Tika > Issue Type: New Feature > Components: parser > Reporter: Jukka Zitting > Assignee: Jukka Zitting > Fix For: 0.4 > > > It would be good to have a mechanism that automatically detects a "zip bomb", > i.e. a compressed document that expands to excessive amounts of extracted > text. The classic example is the 42.zip file that's just 42kB in size, but > expands to about 4 *petabytes* when all layers are fully uncompressed. > A simple preventive measure could be a Parser decorator that counts the > number of input bytes and the output characters, and fails with a > TikaException when the ratio exceeds some configurable limit. > As another preventive measure, the decorator could also keep track of the > time (and perhaps even memory, if possible) it takes to process the input > document. A TikaException would be thrown if processing time exceeds some > configurable limit. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.