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).
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2018-12-26T18:00:00

Updated: 2021-11-28T14:06:09

Reserved: 2018-12-26T00:00:00


Link: CVE-2018-20482

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2018-12-26T18:29:00.373

Modified: 2021-11-30T19:52:03.843


Link: CVE-2018-20482

JSON object: View

cve-icon Redhat Information

No data.

CWE