CVE-2016-6662
CriticalSummary
Oracle MySQL versions up to 5.5.52, 5.6.x up to 5.6.33, and 5.7.x up to 5.7.15, as well as MariaDB before 5.5.51, 10.0.x before 10.0.27, and 10.1.x before 10.1.17, and Percona Server before 5.5.51-38.1, 5.6.x before 5.6.32-78.0, and 5.7.x before 5.7.14-7, allow local users to create arbitrary configurations and bypass certain protection mechanisms by setting general_log_file in the my.cnf file.
Risk Assessment
This vulnerability can be exploited to execute arbitrary code with root privileges, posing a serious security threat to the system.
Recommendation
It is recommended to upgrade to the latest versions of MySQL, MariaDB, or Percona Server to mitigate this vulnerability.
Original NVD description (English source)
Oracle MySQL through 5.5.52, 5.6.x through 5.6.33, and 5.7.x through 5.7.15; MariaDB before 5.5.51, 10.0.x before 10.0.27, and 10.1.x before 10.1.17; and Percona Server before 5.5.51-38.1, 5.6.x before 5.6.32-78.0, and 5.7.x before 5.7.14-7 allow local users to create arbitrary configurations and bypass certain protection mechanisms by setting general_log_file to a my.cnf configuration. NOTE: this can be leveraged to execute arbitrary code with root privileges by setting malloc_lib. NOTE: the affected MySQL version information is from Oracle's October 2016 CPU. Oracle has not commented on third-party claims that the issue was silently patched in MySQL 5.5.52, 5.6.33, and 5.7.15.