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Gentoo Linux Security Advisory GLSA 202006-14
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https://security.gentoo.org/
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Severity: Normal
Title: PEAR Archive_Tar: Remote code execution vulnerability
Date: June 15, 2020
Bugs: #675576
ID: 202006-14

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Synopsis
========

A buffer overflow in the PEAR module Archive_Tar might allow local or
remote attacker(s) to execute arbitrary code.

Background
==========

This class provides handling of tar files in PHP.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-php/PEAR-Archive_Tar
< 1.4.5 >= 1.4.5

Description
===========

An issue was discovered in the PEAR module Archive_Tar’s handling of
file paths within Tar achives.

Impact
======

A local or remote attacker could possibly execute arbitrary code with
the privileges of the process.

Workaround
==========

Avoid handling untrusted Tar files with this package until you have
upgraded to a non-vulnerable version.

Resolution
==========

All PEAR-Archive_Tar users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=dev-php/PEAR-Archive_Tar-1.4.5”

References
==========

[ 1 ] CVE-2018-1000888
https://nvd.nist.gov/vuln/detail/CVE-2018-1000888

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202006-14

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
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 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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