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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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