Unspecified vulnerability in Safari RSS in Apple Mac OS X 10.4.11 allows remote attackers to cause a denial of service (application termination) or execute arbitrary code via a crafted feed: URL that triggers memory corruption.

WebKit in Safari in Apple Mac OS X 10.4.11 and 10.5.1, iPhone 1.0 through 1.1.2, and iPod touch 1.1 through 1.1.2 allows remote attackers to “navigate the subframes of any other page,” which can be leveraged to conduct cross-site scripting (XSS) attacks and obtain sensitive information.

Quick Look in Apple Mac OS X 10.5.1 does not prevent a movie from accessing URLs when the movie file is previewed or if an icon is created, which might allow remote attackers to obtain sensitive information via HREFTrack.

Quick Look Apple Mac OS X 10.5.1, when previewing an HTML file, does not prevent plug-ins from making network requests, which might allow remote attackers to obtain sensitive information.

Mail in Apple Mac OS X 10.4.11 and 10.5.1, when an SMTP account has been set up using Account Assistant, can use plaintext authentication even when MD5 Challenge-Response authentication is available, which makes it easier for remote attackers to sniff account activity.