|  | 2 |  | 
          
            |  | 3 | {{{ | 
          
            |  | 4 | Security fixes: | 
          
            |  | 5 |  | 
          
            |  | 6 | • Do not treat ActivationFailure message received from root-owned | 
          
            |  | 7 | systemd name as a format string. In principle this is a security | 
          
            |  | 8 | vulnerability, but we do not believe it is exploitable in practice, | 
          
            |  | 9 | because only privileged processes can own the | 
          
            |  | 10 | org.freedesktop.systemd1 bus name, and systemd does not appear to | 
          
            |  | 11 | send activation failures that contain "%". | 
          
            |  | 12 |  | 
          
            |  | 13 | Please note that this probably *was* exploitable in dbus versions | 
          
            |  | 14 | older than 1.6.30, 1.8.16 and 1.9.10 due to a missing check which at | 
          
            |  | 15 | the time was only thought to be a denial of service vulnerability | 
          
            |  | 16 | (CVE-2015-0245). If you are still running one of those versions, | 
          
            |  | 17 | patch or upgrade immediately. | 
          
            |  | 18 |  | 
          
            |  | 19 | (fd.o #98157, Simon McVittie) | 
          
            |  | 20 | }}} |