The set_version script as shipped with obs-service-set_version is a source validator for the Open Build Service (OBS). In versions prior to 0.5.3-1.1 this script did not properly sanitize the input provided by the user, allowing for code execution on the executing server.
openSUSE 13.2 openSUSE Leap 42.1 openSUSE Leap 42.2 openSUSE Leap 42.3 openSUSE Tumbleweed SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5