The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7795
Reference (s):
- BID:93223
- URL: http://www.securityfocus.com/bid/93223
- https://github.com/systemd/systemd/issues/4234
- https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet
- MLIST:[oss-security] 20160928 CVE Request: systemd v209+: local denial-of-service attack