--- title: 'USN-3012-1: Wget 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-3012-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-3012-1 --- # USN-3012-1: Wget vulnerability Publication date 20 June 2016 Overview Wget could be made to overwrite files. Releases [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) [15.10](https://ubuntu.com/security/notices?release=wily) [14.04 LTS](https://ubuntu.com/security/notices?release=trusty) [12.04](https://ubuntu.com/security/notices?release=precise) --- Open side navigation ## Packages * [wget](https://ubuntu.com/security/cves?package=wget) - retrieves files from the web ## Details Dawid Golunski discovered that Wget incorrectly handled filenames when being redirected from an HTTP to an FTP URL. A malicious server could possibly use this issue to overwrite local files. ## 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 | | --- | --- | | 16.04 LTS xenial | [wget](https://launchpad.net/ubuntu/+source/wget) –  [1.17.1-1ubuntu1.1](https://launchpad.net/ubuntu/+source/wget/1.17.1-1ubuntu1.1) | | | | 15.10 wily | [wget](https://launchpad.net/ubuntu/+source/wget) –  [1.16.1-1ubuntu1.1](https://launchpad.net/ubuntu/+source/wget/1.16.1-1ubuntu1.1) | | | | 14.04 LTS trusty | [wget](https://launchpad.net/ubuntu/+source/wget) –  [1.15-1ubuntu1.14.04.2](https://launchpad.net/ubuntu/+source/wget/1.15-1ubuntu1.14.04.2) | | | | 12.04 precise | [wget](https://launchpad.net/ubuntu/+source/wget) –  [1.13.4-2ubuntu1.4](https://launchpad.net/ubuntu/+source/wget/1.13.4-2ubuntu1.4) | | | --- ### 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-2016-4971](https://ubuntu.com/security/CVE-2016-4971)