include/tests_webservers in Lynis before 1.5.5 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/lynis.*.unsorted file with an easily determined name.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-3986
• http://cisofy.com/files/lynis-1.5.5.tar.gz
• http://openwall.com/lists/oss-security/2014/06/05/14
• http://openwall.com/lists/oss-security/2014/06/06/12
• http://openwall.com/lists/oss-security/2014/06/07/3
• http://seclists.org/fulldisclosure/2014/Jun/21