========================================================================== Ubuntu Security Notice USN-3317-1 June 12, 2017 irssi vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Irssi could be made to crash if it received specially crafted network traffic. Software Description: - irssi: terminal based IRC client Details: It was discovered that Irssi incorrectly handled certain DCC messages. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2017-9468) Joseph Bisch discovered that Irssi incorrectly handled receiving incorrectly quoted DCC files. A remote attacker could possibly use this issue to cause Irssi to crash, resulting in a denial of service. (CVE-2017-9469) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: irssi 0.8.20-2ubuntu2.1 Ubuntu 16.10: irssi 0.8.19-1ubuntu2.2 Ubuntu 16.04 LTS: irssi 0.8.19-1ubuntu1.4 Ubuntu 14.04 LTS: irssi 0.8.15-5ubuntu3.2 After a standard system update you need to restart Irssi to make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3317-1 CVE-2017-9468, CVE-2017-9469 Package Information: https://launchpad.net/ubuntu/+source/irssi/0.8.20-2ubuntu2.1 https://launchpad.net/ubuntu/+source/irssi/0.8.19-1ubuntu2.2 https://launchpad.net/ubuntu/+source/irssi/0.8.19-1ubuntu1.4 https://launchpad.net/ubuntu/+source/irssi/0.8.15-5ubuntu3.2