jobar opened a new pull request #91: Make bz2 decompressor robust to selector overflow URL: https://github.com/apache/commons-compress/pull/91 As explained in https://gnu.wildebeest.org/blog/mjw/2019/08/02/bzip2-and-the-cve-that-wasnt/ bz2 has historically been able to decompress wrongly formatted compressed files, more precisely files stating more selectors that the algorithm actually uses. This patch replicates https://sourceware.org/ml/bzip2-devel/2019-q3/msg00007.html and provides a test file extracted from 20191201 German Xikipedia XML dump: https://dumps.wikimedia.org/dewiki/20191201/dewiki-20191201-pages-meta-history5.xml-p8161946p8319641.bz2 (the link will disappear soon, as new dumps are generated).
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