ncpmount in ncpfs 2.2.6 and earlier does not remove the /etc/mtab~ lock file after a failed attempt to add a mount entry, which has unspecified impact and local attack vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/66700
http://openwall.com/lists/oss-security/2011/04/01/2
http://openwall.com/lists/oss-security/2011/03/31/4
http://openwall.com/lists/oss-security/2011/03/22/6
http://openwall.com/lists/oss-security/2011/03/22/4
http://openwall.com/lists/oss-security/2011/03/15/6
http://openwall.com/lists/oss-security/2011/03/14/7
http://openwall.com/lists/oss-security/2011/03/14/5
http://openwall.com/lists/oss-security/2011/03/14/16
http://openwall.com/lists/oss-security/2011/03/07/9
http://openwall.com/lists/oss-security/2011/03/05/7
http://openwall.com/lists/oss-security/2011/03/05/3
http://openwall.com/lists/oss-security/2011/03/04/9
http://openwall.com/lists/oss-security/2011/03/04/12