Nessus is a free and powerful network security scanner.
A race condition can occur in "nessus-adduser" if the user has not configured their TMPDIR variable.
A malicious user could exploit this bug to escalate privileges to the rights of the user running "nessus-adduser".
There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of Nessus.
All Nessus users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-analyzer/nessus-2.0.12"
# emerge ">=net-analyzer/nessus-2.0.12"