CVE-2018-20482

2018-12-26T18:29:00
ID CVE-2018-20482
Type cve
Reporter cve@mitre.org
Modified 2019-10-03T00:03:00

Description

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).