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Alpine: multiple tar packages: security update to 1.31-r0

medium Tenable Cloud Security Plugin ID 424550

Description

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

 - 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). (CVE-2018-20482)

See Also

https://security.alpinelinux.org/vuln/CVE-2018-20482

Plugin Details

Severity: Medium

ID: 424550

Version: Revision 1.8

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.5

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

CVSS Score Source: CVE-2018-20482

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.2

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 12/26/2018

Reference Information

CVE: CVE-2018-20482

BID: 106354