Apple Computer has issued a patch to close more than a dozen “highly critical” security vulnerabilities in its main Mac OS X operating system.
The 13 security holes affect both the Panther and Tiger versions of the Mac OS and cover web server, curl technology, Safari browser and denial of service vulnerabilities.
Remote attackers can use some of the holes to take over a user’s Mac and execute malicious code.
Internet security company Secunia has rated the flaws as “highly critical”. A flaw in the Mac Safari browser, for instance, allows remote attackers to infect a user’s machine if they simply visit a malicious website.
Curl technology is used to download files and distribute them efficiently. A flaw in Apple’s curl system allows attackers to execute code on a Mac when a user visits a rogue website.
The latest batch of security updates follows the one from Apple at the beginning of November, which addressed four security holes.