
The update fixes the issue by performing additional validation of TekHex records.
The patch release also fixes a flaw in Xcode Tools' WebObjects that an unprivileged user could exploit to obtain system privileges.
The flaw exists in the demo version of OpenBase contained in Xcode WebObjects, which is disabled to fix the issue.
Apple credited researcher Kevin Finisterre of Netragard for reporting both issues.
See original article on SC Magazine US