Rapid7 Vulnerability & Exploit Database

Oracle Linux: (CVE-2023-3823) (Multiple Advisories): php:8.0 security update

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Oracle Linux: (CVE-2023-3823) (Multiple Advisories): php:8.0 security update



In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down. 


  • oracle-linux-upgrade-apcu-panel
  • oracle-linux-upgrade-libzip
  • oracle-linux-upgrade-libzip-devel
  • oracle-linux-upgrade-libzip-tools
  • oracle-linux-upgrade-php
  • oracle-linux-upgrade-php-bcmath
  • oracle-linux-upgrade-php-cli
  • oracle-linux-upgrade-php-common
  • oracle-linux-upgrade-php-dba
  • oracle-linux-upgrade-php-dbg
  • oracle-linux-upgrade-php-devel
  • oracle-linux-upgrade-php-embedded
  • oracle-linux-upgrade-php-enchant
  • oracle-linux-upgrade-php-ffi
  • oracle-linux-upgrade-php-fpm
  • oracle-linux-upgrade-php-gd
  • oracle-linux-upgrade-php-gmp
  • oracle-linux-upgrade-php-intl
  • oracle-linux-upgrade-php-ldap
  • oracle-linux-upgrade-php-mbstring
  • oracle-linux-upgrade-php-mysqlnd
  • oracle-linux-upgrade-php-odbc
  • oracle-linux-upgrade-php-opcache
  • oracle-linux-upgrade-php-pdo
  • oracle-linux-upgrade-php-pear
  • oracle-linux-upgrade-php-pecl-apcu
  • oracle-linux-upgrade-php-pecl-apcu-devel
  • oracle-linux-upgrade-php-pecl-rrd
  • oracle-linux-upgrade-php-pecl-xdebug3
  • oracle-linux-upgrade-php-pecl-zip
  • oracle-linux-upgrade-php-pgsql
  • oracle-linux-upgrade-php-process
  • oracle-linux-upgrade-php-snmp
  • oracle-linux-upgrade-php-soap
  • oracle-linux-upgrade-php-xml

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center