New submission from segfault42 <brice.na...@free.fr>: Hello,
I have a problem with the librairy zipfile.py http://svn.python.org/view/python/trunk/Lib/zipfile.py?revision=73565&view=markup Zinfo structure limit the size of a file to an int max value with the ZIP64_LIMIT value ( equal to "(1 << 31) - 1 " so to 2147483647 . The problem is happening when you write a big file in the line 1095 : self.fp.write(struct.pack("<lLL", zinfo.CRC, zinfo.compress_size, zinfo.file_size)) zinfo.file_size is limited to a int size and if you have a file bigger than ZIP64_LIMIT you make a buffer overflow even if you set the flag allowZip64 to true. ---------- components: Library (Lib) files: zipfile.py messages: 90242 nosy: segfault42 severity: normal status: open title: buffer overflow in Zipfile when wrinting more than 2gig file versions: Python 2.4, Python 3.0 Added file: http://bugs.python.org/file14469/zipfile.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6434> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
