ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade httpd-manualUpgrade mod_mdUpgrade httpd-filesystemUpgrade mod_ldapUpgrade mod_sessionUpgrade mod_sslUpgrade httpd-toolsUpgrade httpdUpgrade mod_proxy_htmlUpgrade httpd-devel | May 4, 2022 | Sep 16, 2021 |
| Alpine Linux | — | Upgrade apache2 | Aug 22, 2024 | Sep 16, 2021 |
| Amazon Linux Ami 2 | — | Upgrade mod_proxy_htmlUpgrade mod_sessionUpgrade mod_mdUpgrade httpd-manualUpgrade mod_sslUpgrade httpd-toolsUpgrade mod_ldapUpgrade httpd-filesystemUpgrade httpd-debuginfoUpgrade httpd-develUpgrade httpd | Oct 18, 2021 | Sep 16, 2021 |
| Amazon_linux | — | Upgrade httpd24 | Oct 16, 2021 | Sep 16, 2021 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Dec 22, 2021 | Sep 16, 2021 |
| Centos_linux | — | Upgrade mod_ssl-debuginfoUpgrade httpd-tools-debuginfoUpgrade httpd-debuginfoUpgrade mod_ldapUpgrade httpdUpgrade httpd-filesystemUpgrade mod_session-debuginfoUpgrade httpd-manualUpgrade httpd-develUpgrade mod_proxy_html-debuginfoUpgrade mod_proxy_htmlUpgrade mod_sslUpgrade mod_mdUpgrade mod_http2Upgrade mod_sessionUpgrade httpd-debugsourceUpgrade mod_http2-debuginfoUpgrade mod_http2-debugsourceUpgrade httpd-toolsUpgrade mod_md-debuginfoUpgrade mod_md-debugsourceUpgrade mod_ldap-debuginfo | Feb 17, 2022 | Sep 16, 2021 |
| Check Point Gaia | — | Upgrade to supported version Check Point Gaia. | Feb 25, 2026 | Oct 27, 2021 |
| Cisco Telepresence Expressway | — | Upgrade to the latest version of Cisco TelePresence to resolve this vulnerability. | Sep 30, 2024 | Nov 24, 2021 |
| Debian | — | Upgrade apache2 | Nov 29, 2021 | Sep 16, 2021 |
| Freebsd | — | Upgrade apache24 | Nov 4, 2022 | Sep 17, 2021 |
| Gentoo Linux | — | Upgrade www-servers/apache.Upgrade app-admin/apache-tools. | Aug 16, 2022 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp10 | — | Upgrade mod_sslUpgrade httpd-filesystemUpgrade httpdUpgrade httpd-tools | Feb 28, 2022 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade httpd-develUpgrade httpdUpgrade httpd-toolsUpgrade httpd-manualUpgrade mod_ssl | Feb 24, 2022 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade httpd-manualUpgrade httpdUpgrade mod_sessionUpgrade httpd-develUpgrade mod_sslUpgrade httpd-tools | Jan 4, 2022 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade httpd-toolsUpgrade httpd-develUpgrade httpd-filesystemUpgrade httpd-manualUpgrade mod_sslUpgrade httpdUpgrade mod_session | Dec 28, 2021 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade httpd-filesystemUpgrade mod_sslUpgrade httpdUpgrade httpd-tools | Jan 4, 2022 | Sep 16, 2021 |
| Ibm Http_server | — | Apply IBM HTTP Server Interim Fix PH40343 | Mar 14, 2022 | Sep 16, 2021 |
| Oracle Solaris | — | Upgrade web/server/apache-24/module/apache-lua to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24 to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24/module/apache-gss to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ldap to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24/module/apache-dbd to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ssl-fips-140 to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4Upgrade web/server/apache-24/module/apache-ssl to version 2.4.51-11.4.38.0.1.101.6 on Solaris 11.4 | Nov 17, 2021 | Sep 16, 2021 |
| Oracle_linux | — | Upgrade mod_proxy_htmlUpgrade mod_mdUpgrade httpd-toolsUpgrade httpd-develUpgrade httpdUpgrade mod_sslUpgrade mod_ldapUpgrade mod_http2Upgrade httpd-filesystemUpgrade mod_sessionUpgrade httpd-manual | Dec 16, 2021 | Sep 16, 2021 |
| Redhat_linux | — | Upgrade mod_http2-debuginfoUpgrade httpd-manualUpgrade mod_proxy_htmlUpgrade mod_sslUpgrade mod_ldap-debuginfoUpgrade mod_http2-debugsourceUpgrade mod_md-debuginfoUpgrade httpd-debugsourceUpgrade mod_mdUpgrade httpd-toolsUpgrade mod_ssl-debuginfoNo solution existsUpgrade httpd-filesystemUpgrade httpdUpgrade mod_session-debuginfoUpgrade mod_sessionUpgrade mod_proxy_html-debuginfoUpgrade httpd-debuginfoUpgrade httpd-develUpgrade mod_http2Upgrade mod_ldapUpgrade mod_md-debugsourceUpgrade httpd-tools-debuginfo | Jan 18, 2022 | Sep 16, 2021 |
| Rocky_linux | — | Upgrade mod_http2-debuginfoUpgrade httpd-debuginfoUpgrade httpd-debugsourceUpgrade httpdUpgrade mod_sslUpgrade httpd-tools-debuginfoUpgrade httpd-develUpgrade mod_md-debugsourceUpgrade mod_ldap-debuginfoUpgrade mod_http2Upgrade httpd-toolsUpgrade mod_mdUpgrade mod_ldapUpgrade mod_md-debuginfoUpgrade mod_ssl-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade mod_proxy_htmlUpgrade mod_session-debuginfoUpgrade mod_http2-debugsourceUpgrade mod_session | Mar 5, 2024 | Sep 16, 2021 |
| Suse | — | Upgrade apache2-eventUpgrade apache2-utilsUpgrade apache2-workerUpgrade apache2-develUpgrade apache2-docUpgrade apache2-example-pagesUpgrade apache2-preforkUpgrade apache2 | Sep 28, 2021 | Sep 16, 2021 |
| Ubuntu | — | Upgrade apache2Upgrade apache2 (Ubuntu Pro)Upgrade apache2-binUpgrade apache2-bin (Ubuntu Pro) | Sep 28, 2021 | Sep 16, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Sep 16, 2021 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub