========================================================================== Ubuntu Security Notice USN-4288-1 February 20, 2020 ppp vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: ppp could be made to crash or run programs if it received specially crafted network traffic. Software Description: - ppp: Point-to-Point Protocol (PPP) Details: It was discovered that ppp incorrectly handled certain rhostname values. A remote attacker could use this issue to cause ppp 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 19.10: ppp 2.4.7-2+4.1ubuntu4.1 Ubuntu 18.04 LTS: ppp 2.4.7-2+2ubuntu1.2 Ubuntu 16.04 LTS: ppp 2.4.7-1+2ubuntu1.16.04.2 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4288-1 CVE-2020-8597 Package Information: https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+4.1ubuntu4.1 https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+2ubuntu1.2 https://launchpad.net/ubuntu/+source/ppp/2.4.7-1+2ubuntu1.16.04.2