========================================================================== Ubuntu Security Notice USN-3783-1 October 03, 2018 apache2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Apache HTTP Server. Software Description: - apache2: Apache HTTP server Details: Robert Swiecki discovered that the Apache HTTP Server HTTP/2 module incorrectly destroyed certain streams. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1302) Craig Young discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-1333) Gal Goldshtein discovered that the Apache HTTP Server HTTP/2 module incorrectly handled large SETTINGS frames. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-11763) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: apache2-bin 2.4.29-1ubuntu4.4 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3783-1 CVE-2018-11763, CVE-2018-1302, CVE-2018-1333 Package Information: https://launchpad.net/ubuntu/+source/apache2/2.4.29-1ubuntu4.4