========================================================================== Ubuntu Security Notice USN-5487-2 June 23, 2022 apache2 regression ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM Summary: USN-5487-1 introduced a regression in Apache. Software Description: - apache2: Apache HTTP server Details: USN-5487-1 fixed a vulnerabilities in Apache. Unfortunately, that update introduced a regression when proxying balancer manager connections in some configurations on Ubuntu 14.04 ESM. This update reverts those changes till further fix. We apologize for the inconvenience. Original advisory details: It was discovered that Apache HTTP Server mod_proxy_ajp incorrectly handled certain crafted request. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. (CVE-2022-26377) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-28614) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash or expose sensitive information. (CVE-2022-28615) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. (CVE-2022-29404) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash. (CVE-2022-30522) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to execute arbitrary code or cause a crash. (CVE-2022-30556) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to bypass IP based authentication. (CVE-2022-31813) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: apache2 2.4.7-1ubuntu4.22+esm6 apache2-bin 2.4.7-1ubuntu4.22+esm6 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5487-2 https://ubuntu.com/security/notices/USN-5487-1 https://launchpad.net/bugs/XXXXXX