========================================================================== Ubuntu Security Notice USN-3806-1 November 05, 2018
systemd vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: systemd-networkd could be made to crash or run programs if it received specially crafted network traffic. Software Description: - systemd: system and service manager Details: Felix Wilhelm discovered that the systemd-networkd DHCPv6 client incorrectly handled certain DHCPv6 messages. In configurations where systemd-networkd is being used, an attacker on the same network could use this issue to cause systemd-networkd 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 18.10: systemd 239-7ubuntu10.1 Ubuntu 18.04 LTS: systemd 237-3ubuntu10.4 Ubuntu 16.04 LTS: systemd 229-4ubuntu21.6 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3806-1 CVE-2018-15688 Package Information: https://launchpad.net/ubuntu/+source/systemd/239-7ubuntu10.1 https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.4 https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.6
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