--- title: 'USN-4176-1: GNU cpio 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-4176-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-4176-1 --- # USN-4176-1: GNU cpio vulnerability Publication date 6 November 2019 Overview GNU cpio could be used to privilege escalation if it received a specially crafted input. Releases [19.10](https://ubuntu.com/security/notices?release=eoan) [19.04](https://ubuntu.com/security/notices?release=disco) [18.04 LTS](https://ubuntu.com/security/notices?release=bionic) [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) [14.04 LTS](https://ubuntu.com/security/notices?release=trusty) [12.04](https://ubuntu.com/security/notices?release=precise) --- Open side navigation ## Packages * [cpio](https://ubuntu.com/security/cves?package=cpio) - a tool to manage archives of files ## Details Thomas Habets discovered that GNU cpio incorrectly handled certain inputs. An attacker could possibly use this issue to privilege escalation. ## 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 | | --- | --- | | 19.10 eoan | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  [2.12+dfsg-9ubuntu0.1](https://launchpad.net/ubuntu/+source/cpio/2.12+dfsg-9ubuntu0.1) | | | | 19.04 disco | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  [2.12+dfsg-6ubuntu0.19.04.1](https://launchpad.net/ubuntu/+source/cpio/2.12+dfsg-6ubuntu0.19.04.1) | | | | 18.04 LTS bionic | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  [2.12+dfsg-6ubuntu0.18.04.1](https://launchpad.net/ubuntu/+source/cpio/2.12+dfsg-6ubuntu0.18.04.1) | | | | 16.04 LTS xenial | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  [2.11+dfsg-5ubuntu1.1](https://launchpad.net/ubuntu/+source/cpio/2.11+dfsg-5ubuntu1.1) | | | | 14.04 LTS trusty | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  2.11+dfsg-1ubuntu1.2+esm1   Ubuntu Pro | | | | 12.04 precise | [cpio](https://launchpad.net/ubuntu/+source/cpio) –  [2.11-7ubuntu3.3](https://launchpad.net/ubuntu/+source/cpio/2.11-7ubuntu3.3) | | | --- ### 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-2019-14866](https://ubuntu.com/security/CVE-2019-14866)