CVE-2018-20834

HIGH7.5EPSS 0.72%

Arbitrary File Overwrite in tar

Published: 5/1/2019Modified: 11/29/2023
Also known as:GHSA-j44m-qm6p-hp7mDEBIAN-CVE-2018-20834

Description

Versions of `tar` prior to 4.4.2 for 4.x and 2.2.2 for 2.x are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink will overwrite the system's file with the contents of the extracted file. ## Recommendation For tar 4.x, upgrade to version 4.4.2 or later. For tar 2.x, upgrade to version 2.2.2 or later.

Affected packages (2)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References (9)