A PHP security update has been released for Gentoo Linux.

GLSA 202209-20 : PHP: Multiple Vulnerabilities

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Gentoo Linux Security Advisory GLSA 202209-20
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  https://security.gentoo.org/
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Severity: High
Title: PHP: Multiple Vulnerabilities
Date: September 29, 2022
Bugs: #799776, #810526, #819510, #833585, #850772, #857054
ID: 202209-20

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Synopsis
=======
Multiple vulnerabilities have been discovered in PHP, the worst of which
could result in local root privilege escalation.

Background
=========
PHP is a widely-used general-purpose scripting language that is
especially suited for Web development and can be embedded into HTML.

Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/php < 7.4.30:7.4 >= 7.4.30:7.4
< 8.0.23:8.0 >= 8.0.23:8.0
< 8.1.8:8.1 >= 8.1.8:8.1

Description
==========
Multiple vulnerabilities have been discovered in PHP. Please review the
CVE identifiers referenced below for details.

Impact
=====
Please review the referenced CVE identifiers for details.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All PHP 7.4 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">Þv-lang/php-7.4.30:7.4"

All PHP 8.0 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">Þv-lang/php-8.0.23:8.0"

All PHP 8.1 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">Þv-lang/php-8.1.8:8.1"

References
=========
[ 1 ] CVE-2021-21703
  https://nvd.nist.gov/vuln/detail/CVE-2021-21703
[ 2 ] CVE-2021-21704
  https://nvd.nist.gov/vuln/detail/CVE-2021-21704
[ 3 ] CVE-2021-21705
  https://nvd.nist.gov/vuln/detail/CVE-2021-21705
[ 4 ] CVE-2021-21708
  https://nvd.nist.gov/vuln/detail/CVE-2021-21708
[ 5 ] CVE-2022-31625
  https://nvd.nist.gov/vuln/detail/CVE-2022-31625
[ 6 ] CVE-2022-31626
  https://nvd.nist.gov/vuln/detail/CVE-2022-31626
[ 7 ] CVE-2022-31627
  https://nvd.nist.gov/vuln/detail/CVE-2022-31627

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

  https://security.gentoo.org/glsa/202209-20

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 2022 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