Apple Computer has issued a security patch to correct problems in its previous security update and to plug new security holes.
Earlier this month, Apple released a security update for its Mac OS X operating system that addressed 20 security vulnerabilities.
The download included a file validation system to protect Apple’s Safari web browser, Apple Mail client and iChat instant messaging platform.
However, Apple has found that users are wrongly being warned when downloading safe files, such as Word documents and files containing custom icons.
Apple said the latest security update fixed this “false positives” problem. In addition, Apple admitted that the new validation system allowed users to open some potentially malicious files without any warning. This problem has also now been fixed.
The new security update also fixes a newly discovered buffer overflow threat in Apple Mail, which could allow remote attackers to run arbitrary code on a user’s machine.