[USN-5487-2] Apache HTTP Server regression


========================================================================== 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: ubuntu.com/security/notices/USN-5487-2 ubuntu.com/security/notices/USN-5487-1 launchpad.net/bugs/XXXXXX