CVE-2010-1161
Race condition in GNU nano before 2.2.4, when run by root to edit a file that is not owned by root, allows local user-assisted attackers to change the ownership of arbitrary files via vectors related to the creation of backup files.
Date published : 2010-04-16
http://svn.savannah.gnu.org/viewvc/trunk/nano/ChangeLog?revision=4503&root=nano&view=markup