This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2018-20482 →

DEBIAN-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 (infi...

Original description

The description as published by the source.

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: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 tar

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30+dfsg-3.1"}]}]

Debian:13 tar

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30+dfsg-3.1"}]}]

Debian:14 tar

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30+dfsg-3.1"}]}]

References

advisory security-tracker.debian.org