--- title: 'USN-3370-1: Apache HTTP Server vulnerability | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-3370-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-3370-1 --- # USN-3370-1: Apache HTTP Server vulnerability Publication date 27 July 2017 Overview Apache HTTP Server could be made to crash or leak sensitive information if it received specially crafted network traffic. Releases [17.04](https://ubuntu.com/security/notices?release=zesty) [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) [14.04 LTS](https://ubuntu.com/security/notices?release=trusty) --- Open side navigation ## Packages * [apache2](https://ubuntu.com/security/cves?package=apache2) - Apache HTTP server ## Details Robert Święcki discovered that the Apache HTTP Server mod\_auth\_digest module incorrectly cleared values when processing certain requests. A remote attacker could use this issue to cause the server to crash, resulting in a denial or service, or possibly obtain sensitive information. ## Update instructions In general, a standard system update will make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 17.04 zesty | [apache2-bin](https://launchpad.net/ubuntu/+source/apache2) –  [2.4.25-3ubuntu2.2](https://launchpad.net/ubuntu/+source/apache2/2.4.25-3ubuntu2.2) | | | | 16.04 LTS xenial | [apache2-bin](https://launchpad.net/ubuntu/+source/apache2) –  [2.4.18-2ubuntu3.4](https://launchpad.net/ubuntu/+source/apache2/2.4.18-2ubuntu3.4) | | | | 14.04 LTS trusty | [apache2-bin](https://launchpad.net/ubuntu/+source/apache2) –  [2.4.7-1ubuntu4.17](https://launchpad.net/ubuntu/+source/apache2/2.4.7-1ubuntu4.17) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2017-9788](https://ubuntu.com/security/CVE-2017-9788) ## Related notices * [USN-3370-2](https://ubuntu.com/security/notices/USN-3370-2)