lib/vlad/dba/mysql.rb in the VladTheEnterprising gem 0.2 for Ruby allows local users to write to arbitrary files via a symlink attack on /tmp/my.cnf.#{target_host}.
References
- https://nvd.nist.gov/vuln/detail/CVE-2014-4996
- https://exchange.xforce.ibmcloud.com/vulnerabilities/94744
- http://www.openwall.com/lists/oss-security/2014/07/07/14
- http://www.openwall.com/lists/oss-security/2014/07/17/5
- http://www.vapid.dhs.org/advisories/VladTheEnterprising-0.2.html
- https://web.archive.org/web/20200229054941/http://www.securityfocus.com/bid/68731
- https://github.com/advisories/GHSA-x4vj-279x-qwf2