A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.
CVSS Details
- CVSS 3.1 Base Score: 4.2
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade mod_md | May 4, 2022 | Jun 11, 2019 |
| Alpine Linux | — | Upgrade apache2 | Jun 11, 2019 | Jun 11, 2019 |
| Amazon Linux Ami 2 | — | Upgrade httpd-debuginfoUpgrade httpdUpgrade mod_sessionUpgrade httpd-develUpgrade httpd-filesystemUpgrade mod_ldapUpgrade mod_mdUpgrade httpd-toolsUpgrade httpd-manualUpgrade mod_proxy_htmlUpgrade mod_ssl | Apr 27, 2020 | Jun 11, 2019 |
| Amazon_linux | — | Upgrade httpd24 | Aug 7, 2019 | Apr 5, 2019 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Jun 11, 2019 | Jun 11, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2019 |
| Centos_linux | — | Upgrade mod_sslUpgrade mod_proxy_htmlUpgrade mod_sessionUpgrade mod_md-debuginfoUpgrade mod_mdUpgrade mod_http2-debugsourceUpgrade httpd-debugsourceUpgrade mod_ldap-debuginfoUpgrade mod_http2-debuginfoUpgrade httpd-filesystemUpgrade httpd-debuginfoUpgrade httpd-develUpgrade mod_md-debugsourceUpgrade mod_http2Upgrade httpd-manualUpgrade mod_ldapUpgrade httpd-toolsUpgrade httpd-tools-debuginfoUpgrade mod_session-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade mod_ssl-debuginfoUpgrade httpd | Nov 5, 2020 | Jun 11, 2019 |
| Debian | — | Upgrade apache2 | Jul 30, 2024 | Jun 11, 2019 |
| Hpux | — | Update hpuxwsAPACHE to the latest version | Sep 16, 2019 | Jun 11, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade httpd-manualUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd-filesystemUpgrade mod_sessionUpgrade httpdUpgrade httpd-devel | Mar 24, 2020 | Jun 11, 2019 |
| Ibm Http_server | — | Apply IBM HTTP Server version 9.0.5.0 or later | Nov 5, 2019 | Jun 11, 2019 |
| Oracle Solaris | — | Upgrade 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-ldap 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 to version 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade 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-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-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 2.4.39-0.175.3.36.0.11.0 on Solaris 11.3Upgrade 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-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-dbd to version 2.4.39-11.4.9.0.1.1.0 on Solaris 11.4 | May 30, 2019 | May 30, 2019 |
| Oracle_linux | — | Upgrade httpdUpgrade httpd-manualUpgrade httpd-toolsUpgrade httpd-develUpgrade mod_mdUpgrade mod_ldapUpgrade mod_sslUpgrade httpd-filesystemUpgrade mod_http2Upgrade mod_proxy_htmlUpgrade mod_session | Nov 12, 2020 | Feb 1, 2019 |
| Redhat_linux | — | Upgrade mod_md-debugsourceUpgrade mod_http2Upgrade httpd-filesystemUpgrade httpd-toolsUpgrade mod_proxy_htmlUpgrade mod_ssl-debuginfoUpgrade mod_session-debuginfoUpgrade mod_http2-debuginfoUpgrade httpd-tools-debuginfoUpgrade httpd-develUpgrade mod_sessionUpgrade mod_proxy_html-debuginfoUpgrade httpd-manualUpgrade mod_ldapUpgrade mod_http2-debugsourceUpgrade httpd-debugsourceUpgrade mod_sslUpgrade mod_mdUpgrade httpdUpgrade mod_md-debuginfoUpgrade mod_ldap-debuginfoUpgrade httpd-debuginfo | Nov 5, 2020 | Jun 11, 2019 |
| Rocky_linux | — | Upgrade mod_md-debugsourceUpgrade mod_mdUpgrade mod_md-debuginfo | Mar 12, 2024 | Jun 11, 2019 |
| Suse | — | Upgrade apache2-workerUpgrade apache2-utilsUpgrade apache2-develUpgrade apache2Upgrade apache2-preforkUpgrade apache2-eventUpgrade apache2-example-pagesUpgrade apache2-doc | Apr 5, 2019 | Apr 4, 2019 |
| Ubuntu | — | Upgrade apache2-binUpgrade apache2 | Aug 30, 2019 | Apr 5, 2019 |
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