========================================================================== Ubuntu Security Notice USN-4746-1 February 24, 2021 xterm vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: xterm could be made to crash or run programs if it handled specially crafted character sequences. Software Description: - xterm: X terminal emulator Details: Tavis Ormandy discovered that xterm incorrectly handled certain character sequences. A remote attacker could use this issue to cause xterm to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: xterm 353-1ubuntu1.20.10.2 Ubuntu 20.04 LTS: xterm 353-1ubuntu1.20.04.2 Ubuntu 18.04 LTS: xterm 330-1ubuntu2.2 Ubuntu 16.04 LTS: xterm 322-1ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4746-1 CVE-2021-27135 Package Information: https://launchpad.net/ubuntu/+source/xterm/353-1ubuntu1.20.10.2 https://launchpad.net/ubuntu/+source/xterm/353-1ubuntu1.20.04.2 https://launchpad.net/ubuntu/+source/xterm/330-1ubuntu2.2 https://launchpad.net/ubuntu/+source/xterm/322-1ubuntu1.2