About the security content of Mac OS X v10.6.6
This document describes the security content of Mac OS X v10.6.6, which can be downloaded and installed via Software Update preferences, or from Apple Downloads.
For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.
For information about the Apple Product Security PGP Key, see "How to use the Apple Product Security PGP Key."
Where possible, CVE IDs are used to reference the vulnerabilities for further information.
To learn about other Security Updates, see "Apple Security Updates".
Mac OS X v10.6.6
Available for: Mac OS X v10.6 through v10.6.5, Mac OS X Server v10.6 through v10.6.5
Impact: A man-in-the-middle attacker may be able to cause an unexpected application termination or arbitrary code execution
Description: A format string issue exists in PackageKit's handling of distribution scripts. A man-in-the-middle attacker may be able to cause an unexpected application termination or arbitrary code execution when Software Update checks for new updates. This issue is addressed through improved validation of distribution scripts. This issue does not affect systems prior to Mac OS X v10.6. Credit to Aaron Sigel of vtty.com for reporting this issue.