Apple Patches 15 Mac OS X Flaws
Apple claims most users are protected from the worst dangers of the flaws, many of which originate in the OS' open-source components.Apple Computer Inc. has issued a patch for 15 security flaws in its Mac OS X operating system, including many originating in the softwares open-source components. The company, however, claims most users are safe from the bugs most dangerous effects. The patch, available from Apples Web site or through its automatic update system, fixes issues with Kerberos, Apache 2, IPSec, rsync and other open-source components, as well as in Apple applications such as the Safari browser. (Safari also draws open-source components, such as KHTML and KJS.) Possible exploits include remote execution of malicious code, denial of service, local user privilege escalation, cross-site scripting and Web page spoofing. However, most users will be protected from the flaws worst dangers, Apple said. For example, a recently publicized string of "double-free" bugs in the Kerberos authentication system doesnt affect the OS X and OS X Server version of Kerberos. Apples component is susceptible to a buffer overflow that could allow a remote attacker to take over a system, but only if "auth_to_local_names" or "auth_to_local" support is also configured in the edu.mit.Kerberos file, Apple said. "Apple does not enable this by default," the company said in its advisory.
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