CVE-2018-20482

CVE-2018-20482

GNU Tar through 1.30, when –sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user’s process (e.g., a system backup running as root).

Source: CVE-2018-20482

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