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Gentoo Linux Security Advisory GLSA 202105-29
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https://security.gentoo.org/
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Severity: Low
Title: Tar: Denial of service
Date: May 26, 2021
Bugs: #778548
ID: 202105-29
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Synopsis
========
A vulnerability in Tar could lead to a Denial of Service condition.
Background
==========
The Tar program provides the ability to create and manipulate tar
archives.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/tar < 1.34 >= 1.34
Description
===========
It was discovered that GNU Tar had a memory leak when processing
archive headers.
Impact
======
A remote attacker could entice a user to open a specially crafted
archive using Tar, possibly resulting in a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Tar users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/tar-1.34"
References
==========
[ 1 ] CVE-2021-20193
https://nvd.nist.gov/vuln/detail/CVE-2021-20193
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202105-29
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
secur...@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
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