2009年9月22日 · The best-known zip bomb, 42.zip, expands to a formidable 4.5 PB if all six of its layers are recursively unzipped, but a trifling 0.6 MB at the top layer. Zip quines, like those of Ellingsen and Cox, which contain a copy of themselves and thus expand infinitely if recursively unzipped, are likewise perfectly safe to unzip once."

I just read about zip bombs, i.e. zip files that contain very large amount of highly compressible data (00000000000000000...). When opened they fill the server's disk. How can I detect a zip file...

"Zip bomb" is a term used for an attack vector where a small zip file expands to a very large uncompressed file and thus can cause issues like exhausting memory or disk space. Usually such zips are created with the intent of causing a denial of service attack on systems that receive zip files from external sources.

Caused by: java.io.IOException: Zip bomb detected! The file would exceed certain limits which usually indicate that the file is used to inflate memory usage and thus could pose a security risk. You can adjust these limits via setMinInflateRatio() and setMaxEntrySize() if you need to work with files which exceed these limits.

Caused by: java.io.IOException: Zip bomb detected! The file would exceed the max. ratio of compressed file size to the size of the expanded data. This may indicate that the file is used to inflate memory usage and thus could pose a security risk.

2012年11月29日 · This is related to the question about zip bombs, but having gzip or bzip2 compression in mind, e.g. a web service accepting .tar.gz files. Python provides a handy tarfile module that is convenient...

2020年11月26日 · I downloaded MOT17 dataset and when I try to unzip it using: $ unzip MOT17.zip I get this: error: not enough memory for bomb detection error: invalid zip file with overlapped components (possible zip

2019年12月2日 · In the latter case the central directory and zipfile comment will be found on the last disk(s) of this archive. unzip: cannot find zipfile directory in one of object_detection.zip or object_detection.zip.zip, and cannot find object_detection.zip.ZIP, period.

#ls test.z01 test.z02 test.z03 test.z04 test.z05 test.zip [tbabu@fgtd-301705-130558-app001 .tbabu]$ unzip test.zip Archive: test.zip warning [test.zip]: zipfile claims to be last disk of a multi-part archive; attempting to process anyway, assuming all parts have been concatenated together in …

2014年2月19日 · We are using Tika 1.1 to extract content from an XLSM file. We have two instances of our server. On one of the servers the file content is getting extracted properly. But on another server I am getting zip bomb exception for the same file. We are using same tika standalone jar at both instances. But I am not able to identify the issue.