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Gentoo Linux Security Advisory                           GLSA 202009-10
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                                           https://security.gentoo.org/
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 Severity: Low
    Title: PHP: Denial of service
     Date: September 13, 2020
     Bugs: #736158
       ID: 202009-10

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Synopsis
========

A vulnerabilities in PHP could lead to a Denial of Service condition.

Background
==========

PHP is an open source general-purpose scripting language that is
especially suited for web development.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-lang/php               < 7.2.33:7.2            >= 7.2.33:7.2
                                < 7.3.21:7.3            >= 7.3.21:7.3
                                < 7.4.9:7.4              >= 7.4.9:7.4

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

It was discovered that PHP did not properly handle PHAR files.

Impact
======

A remote attacker could entice a user to open a specially crafted PHAR
file using PHP, possibly allowing attacker to obtain sensitive
information or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PHP 7.2 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/php-7.2.33"

All PHP 7.3 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/php-7.3.21"

All PHP 7.4 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/php-7.4.9"

References
==========

[ 1 ] CVE-2020-7068
      https://nvd.nist.gov/vuln/detail/CVE-2020-7068

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

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

 https://security.gentoo.org/glsa/202009-10

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