March 2007

ID: 73
Ref: 015/2007
Date: 07 March 2007:18:36:44
Version: 1

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Title: Apple Security Advisory: APPLE-SA-2007-02-15 - Security Update 2007-002
Abstract: A buffer overflow exists in the handling of volume names. By enticing a user to mount a malicious disk image, an attacker could trigger this issue, which may lead to an application crash or arbitrary code execution.
Vendors affected: Apple
Operating systems affected: Apple

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A buffer overflow exists in Finder's handling of volume names. By enticing a user to mount a malicious disk image, an attacker could trigger this issue, which may lead to an application crash or arbitrary code execution. A proof of concept for this issue has been published on the Month of Apple Bugs web site (MOAB-09-01-2007). This update addresses the issue by performing additional validation of disk images. This issue does not affect systems prior to Mac OS X v10.4. Credit to Kevin Finisterre of DigitalMunition for reporting this issue.

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APPLE-SA-2007-02-15 Security Update 2007-002

Security Update 2007-002 is now available and addresses the following
issues:

Finder
CVE-ID: CVE-2007-0197
Available for: Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact: Mounting a maliciously-crafted disk image may lead to an application crash or arbitrary code execution
Description: A buffer overflow exists in Finder's handling of volume names. By enticing a user to mount a malicious disk image, an attacker could trigger this issue, which may lead to an application crash or arbitrary code execution. A proof of concept for this issue has been published on the Month of Apple Bugs web site (MOAB-09-01-2007). This update addresses the issue by performing additional validation of disk images. This issue does not affect systems prior to Mac OS X v10.4. Credit to Kevin Finisterre of DigitalMunition for reporting this issue.

iChat
CVE-ID: CVE-2007-0614, CVE-2007-0710
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact: Attackers on the local network may be able to cause iChat to crash
Description: A null pointer dereference in iChat's Bonjour message handling could allow a local network attacker to cause an application crash. A proof of concept for this issue in Mac OS X v10.4 has been published on the Month of Apple Bugs web site (MOAB-29-01-2007). This update addresses the issues by performing additional validation of Bonjour messages.

iChat
CVE-ID: CVE-2007-0021
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact: Visiting malicious websites may lead to an application crash or arbitrary code execution
Description: A format string vulnerability exists in the iChat AIM URL handler. By enticing a user to access a maliciously-crafted AIM URL, an attacker can trigger the overflow, which may lead to an application crash or arbitrary code execution. A proof of concept for this issue has been published on the Month of Apple Bugs web site (MOAB-20-01-2007). This update addresses the issue by performing additional validation of AIM URLs.

UserNotification
CVE-ID: CVE-2007-0023
Available for: Mac OS X v10.3.9, Mac OS X Server v10.3.9, Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact: Malicious local users may be able to obtain system privileges
Description: The UserNotificationCenter process runs with elevated privileges in the context of a local user. This may allow a malicious local user to overwrite or modify system files. A program that triggers this issue has been published on the Month of Apple Bugs web site (MOAB-22-01-2007). This update addresses the issue by having UserNotificationCenter drop its group privileges immediately after launching.

Security Update 2007-002 may be obtained from the Software Update pane in System Preferences, or Apple's Software Downloads web
site:
http://www.apple.com/support/downloads/

For Mac OS X v10.4.8 (PowerPC)
The download file is named: "SecUpd2007-002Ti.dmg"
Its SHA-1 digest is: 79da4e0f61288277f9896e761903abf748d2dc21

For Mac OS X v10.4.8 (Intel)
The download file is named: "SecUpd2007-002Univ.dmg"
Its SHA-1 digest is: 9a4b97853ac05ff407a8b8fe0906d916e219648b

For Mac OS X v10.3.9
The download file is named: "SecUpd2007-002Pan.dmg"
Its SHA-1 digest is: 81199248bf7218d8788663153131ab51d31320a1

Information will also be posted to the Apple Product Security web site:
http://docs.info.apple.com/article.html?artnum=61798

This message is signed with Apple's Product Security PGP key, and details are available at:
http://www.apple.com/support/security/pgp/

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