========================================================================== Ubuntu Security Notice USN-5839-1 February 01, 2023 apache2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in Apache HTTP Server. Software Description: - apache2: Apache HTTP server Details: It was discovered that the Apache HTTP Server mod_dav module incorrectly handled certain If: request headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2006-20001) ZeddYu_Lu discovered that the Apache HTTP Server mod_proxy_ajp module incorrectly interpreted certain HTTP Requests. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. (CVE-2022-36760) Dimas Fariski Setyawan Putra discovered that the Apache HTTP Server mod_proxy module incorrectly truncated certain response headers. This may result in later headers not being interpreted by the client. (CVE-2022-37436) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: apache2 2.4.54-2ubuntu1.1 Ubuntu 22.04 LTS: apache2 2.4.52-1ubuntu4.3 Ubuntu 20.04 LTS: apache2 2.4.41-4ubuntu3.13 Ubuntu 18.04 LTS: apache2 2.4.29-1ubuntu4.26 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5839-1 CVE-2006-20001, CVE-2022-36760, CVE-2022-37436 Package Information: https://launchpad.net/ubuntu/+source/apache2/2.4.54-2ubuntu1.1 https://launchpad.net/ubuntu/+source/apache2/2.4.52-1ubuntu4.3 https://launchpad.net/ubuntu/+source/apache2/2.4.41-4ubuntu3.13 https://launchpad.net/ubuntu/+source/apache2/2.4.29-1ubuntu4.26