CVE-2012-4452

MySQL 5.0.88, and possibly other versions and platforms, allows local users to bypass certain privilege checks by calling CREATE TABLE on a MyISAM table with modified (1) DATA DIRECTORY or (2) INDEX DIRECTORY arguments that are originally associated with pathnames without symlinks, and that can point to tables created at a future time at which a pathname is modified to contain a symlink to a subdirectory of the MySQL data home directory, related to incorrect calculation of the mysql_unpacked_real_data_home value. NOTE: this vulnerability exists because of a CVE-2009-4030 regression, which was not omitted in other packages and versions such as MySQL 5.0.95 in Red Hat Enterprise Linux 6.

🔗 References (8)

• secalert@redhathttp://rhn.redhat.com/errata/RHSA-2013-0121.html
• secalert@redhathttp://www.openwall.com/lists/oss-security/2012/09/27/1
• secalert@redhathttp://www.securityfocus.com/bid/55715
• secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=860808
• af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2013-0121.html
• af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/09/27/1
• af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/55715
• af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=860808