In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade apache2 | Apr 8, 2019 | Apr 8, 2019 |
| Amazon Linux Ami 2 | — | Upgrade mod_sslUpgrade httpd-debuginfoUpgrade mod_ldapUpgrade mod_mdUpgrade httpd-develUpgrade httpd-filesystemUpgrade httpdUpgrade mod_sessionUpgrade httpd-toolsUpgrade mod_proxy_htmlUpgrade httpd-manual | Oct 18, 2022 | Apr 8, 2019 |
| Amazon_linux | — | Upgrade httpd24 | Apr 10, 2019 | Apr 1, 2019 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Apr 8, 2019 | Apr 8, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 8, 2019 |
| Centos_linux | — | Upgrade httpdUpgrade httpd-manualUpgrade httpd-toolsUpgrade mod_http2-debugsourceUpgrade mod_http2-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_md-debuginfoUpgrade mod_mdUpgrade httpd-develUpgrade httpd-debugsourceUpgrade httpd-tools-debuginfoUpgrade mod_session-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade mod_sslUpgrade httpd-filesystemUpgrade mod_http2Upgrade mod_sessionUpgrade mod_ssl-debuginfoUpgrade mod_proxy_htmlUpgrade httpd-debuginfoUpgrade mod_ldap | Aug 28, 2019 | Apr 8, 2019 |
| Debian | — | Upgrade apache2 | Apr 4, 2019 | Apr 4, 2019 |
| Freebsd | — | Upgrade apache24 | Apr 2, 2019 | Apr 2, 2019 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Apr 24, 2019 | Apr 8, 2019 |
| Hpux | — | Update hpuxwsAPACHE to the latest version | Sep 16, 2019 | Apr 8, 2019 |
| Ibm Http_server | — | Apply IBM HTTP Server Interim Fix PH09869 | May 3, 2019 | Apr 8, 2019 |
| Ibm Was | — | Upgrade to minimal fix pack levels as required by interim fixes and then apply latest Interim Fix. | Apr 23, 2019 | Apr 23, 2019 |
| Oracle Solaris | — | Upgrade web/server/apache-24/module/apache-ssl to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ldap to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-ssl-fips-140 to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-ssl-fips-140 to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-gss to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24 to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-dbd to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ldap to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-gss to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-lua to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-dbd to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade web/server/apache-24/module/apache-lua to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24 to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ssl to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3 | May 30, 2019 | Apr 8, 2019 |
| Oracle_linux | — | Upgrade mod_proxy_htmlUpgrade mod_mdUpgrade httpd-develUpgrade httpd-toolsUpgrade httpdUpgrade mod_sessionUpgrade mod_sslUpgrade mod_ldapUpgrade httpd-manualUpgrade httpd-filesystemUpgrade mod_http2 | Jul 22, 2024 | Apr 1, 2019 |
| Redhat_linux | — | Upgrade mod_http2-debuginfoUpgrade mod_proxy_htmlUpgrade mod_ssl-debuginfoUpgrade httpd-filesystemUpgrade httpd-tools-debuginfoUpgrade mod_http2Upgrade httpd-develUpgrade httpd-debuginfoUpgrade mod_session-debuginfoUpgrade httpd-manualUpgrade httpdUpgrade httpd-debugsourceUpgrade mod_ldapUpgrade mod_sslUpgrade httpd-toolsUpgrade mod_http2-debugsourceUpgrade mod_sessionUpgrade mod_proxy_html-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_md-debuginfoUpgrade mod_md | May 8, 2019 | Apr 8, 2019 |
| Suse | — | Upgrade apache2-workerUpgrade apache2Upgrade apache2-utilsUpgrade apache2-eventUpgrade apache2-docUpgrade apache2-example-pagesUpgrade apache2-preforkUpgrade apache2-devel | Apr 6, 2019 | Apr 1, 2019 |
| Ubuntu | — | Upgrade apache2-bin | Apr 11, 2019 | Apr 1, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 8, 2019 |
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