Common Vulnerabilities and Exposures assigned an identifier CVE-2011-2147 to
the following vulnerability:

Openswan 2.2.x does not properly restrict permissions for (1) /var/run/
starter.pid, related to starter.c in the IPsec starter, and (2) /var/lock/
subsys/ipsec, which allows local users to kill arbitrary processes by writing
a PID to a file, or possibly bypass disk quotas by writing arbitrary data to
a file, as demonstrated by files with 0666 permissions, a different
vulnerability than CVE-2011-1784.

References:
[1] http://lists.debian.org/debian-security/2011/05/msg00013.html
[2] http://lists.debian.org/debian-security/2011/05/msg00018.html
[3] http://lists.debian.org/debian-security/2011/05/msg00012.html