<p>Upgrade <code>Ubuntu:18.04</code> <code>tar</code> to version 1.29b-2ubuntu0.3 or higher.</p>

Out-of-bounds Read Affecting tar package, versions <1.29b-2ubuntu0.3

Snyk CVSS

Attack Complexity Low

User Interaction Required

Availability High

Threat Intelligence

EPSS 0.08% (32^nd percentile)

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Snyk ID SNYK-UBUNTU1804-TAR-1126792
published 26 Apr 2021
disclosed 26 Mar 2021

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Introduced: 26 Mar 2021

CVE-2021-20193 Open this link in a new tab CWE-125 Open this link in a new tab CWE-401 Open this link in a new tab

How to fix?

Upgrade Ubuntu:18.04 tar to version 1.29b-2ubuntu0.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tar package and not the tar package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availability.