Detections
Analytics

SCA: security update for tar-fs (GHSA-x2mc-8fgj-3wmr)

high Tenable Cloud Security Plugin ID 422927

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A vulnerability was found in tar-fs before 1.16.2. An Arbitrary File Overwrite issue exists when
 extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction
 with a later plain file with the same name as the hardlink. This plain file content replaces the existing
 file content. (CVE-2018-20835)

See Also

https://github.com/advisories/GHSA-x2mc-8fgj-3wmr

Plugin Details

Severity: High

ID: 422927

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 3/29/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2018-20835

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/1/2019

Vulnerability Publication Date: 4/30/2019

Reference Information

CVE: CVE-2018-20835

cwe: CWE-20