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USN-3341-1: Systemd vulnerability

27 June 2017

systemd-resolved could be made to crash or run programs if it received a specially crafted DNS response.



  • systemd - system and service manager


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. (CVE-2017-9445)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04
Ubuntu 16.10

In general, a standard system update will make all the necessary changes.