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.
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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.