Apple fixes 26 Mac OS flaws

By Joris Evers
News.com

http://news.com.com/Apple+fixes+26+Mac+OS+flaws/2100-1002_3-6101192.html

Story last modified Wed Aug 02 09:26:36 PDT 2006



Apple Computer issued on Tuesday updates for its Mac OS X operating system 
to fix 26 security flaws, some serious.

Several of the vulnerabilities affect the way in which Mac OS X handles 
images and the file-sharing capabilities of the software, according to an 
Apple security advisory. Other flaws were found and fixed within components 
such as Fetchmail, file compression features, and DHCP networking 
functionality, Apple said.

The vulnerabilities could enable a variety of attacks, security company 
Symantec said in an advisory sent out to customers of its DeepSight 
intelligence service. "Remote attackers can execute arbitrary code, trigger 
denial-of-service conditions, elevate privileges, and disclose potentially 
sensitive information," Symantec said.

Apple credits a number of security researchers with finding the flaws. 
These include researchers employed by Google and Mozilla, as well as Tom 
Ferris, a freelance security researcher who has disclosed limited 
information on some Apple bugs in the past.

The bulk of the Mac OS X flaws affect both the client and server versions 
of the operating system. Attackers could exploit several of the 
vulnerabilities, specifically those related to image processing and file 
compression, by crafting malicious files and tricking people into opening 
them, Apple said. This attack method is seen often on computers that run 
Microsoft's Windows operating system.

A handful of flaws related to file sharing, handled by the Mac OS X AFP 
server, could expose user data or let a malicious user gain elevated 
privileges a system running Mac OS X or cause a crash, Apple said.

The update also increases the length of the passkey used for pairing 
Bluetooth devices with Mac computers, Apple said. This could provide 
enhanced security for the use of Macs with wireless devices that use 
Bluetooth technology.

Mac OS X users are urged to upgrade in order to protect their systems 
against possible attacks that may exploit the flaws. Symantec said that it 
doesn't know of current attack code for any of the issues, though some may 
not require specific exploit code, the company said.

Apple has released Security Update 2006-004 to address the issues. The 
update is available from the Software Update pane in System Preferences on 
Mac OS X systems or through Apple's Web site. Until now, Apple's most 
recent security update came out in late June.


================================
George Antunes, Political Science Dept
University of Houston; Houston, TX 77204
Voice: 713-743-3923  Fax: 713-743-3927
antunes at uh dot edu



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