Arch Linux Security Advisory ASA-201707-2 ========================================= Severity: Critical Date : 2017-07-03 CVE-ID : CVE-2017-9445 Package : systemd Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-329 Summary ======= The package systemd before version 233-6 is vulnerable to arbitrary code execution. Resolution ========== Upgrade to 233-6. # pacman -Syu "systemd>=233-6" The problem has been fixed upstream in version 233. Workaround ========== None. Description =========== An out-of-bounds write was discovered in systemd-resolved when handling specially crafted DNS responses. A remote attacker could potentially exploit this to cause a denial of service (daemon crash) or execute arbitrary code. Impact ====== A remote attacker is able to craft a malicious DNS response to crash systemd-resolved or execute arbitrary code on the target host. References ========== https://bugs.archlinux.org/task/54619 http://seclists.org/oss-sec/2017/q2/618 https://security.archlinux.org/CVE-2017-9445