Update is designed to address installation problems with patch released earlier in week, say security experts.
After installing Apple's original Security Update 2006-002, people may find that Safari has a blank icon that won't launch the Web browser, the Mac maker said in an article on its support Web site. The problem occurs if the user moved Safari out of the applications folder before installing the update, the company said in the article.
On Apple's forum site, some people reported networking issues after installing the 2006-002 patch, which was released Monday.
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Johannes Ullrich, the chief research officer at the Sans Institute, said Apple's revised patch appears to just be a fix for the earlier update. The SANS Internet Storm Center released a security advisory on Friday.
"The update appears to fix installation problems with the earlier patch, because it's not addressing any new security issues," Ullrich said.
Apple released 2006-002 v1.1 for the Mac OS X 10.45 (PPC) well as 2006-002 v1.1 for the OS X 10.45 Client (Intel).
While software makers sometimes do repair a patch within days of releasing it because of trouble, Apple's Thursday release is the third attempt to issue a glitch-free Mac OS X update. Monday's patch was in part meant to put right problems raised by an earlier security fix.