=========================================================================== Ubuntu Security Notice USN-3294-2 August 01, 2017 bash vulnerability =========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: A security issues were fixed in Bash. Software Description: - bash: GNU Bourne Again SHell Details: USN-3294-1 fixed a vulnerability in Bash. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Bash incorrectly handled the SHELLOPTS and PS4 environment variables. A local attacker could use this issue to execute arbitrary code with root privileges. (CVE-2016-7543) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: bash=C2=A04.2-2ubuntu2.7 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3294-2 https://www.ubuntu.com/usn/usn-3294-1 CVE-2016-7543