Use-after-free vulnerability in the Runin box functionality in the Cascading Style Sheets (CSS) 2.1 Visual Formatting Model implementation in WebKit, as used in Apple iTunes before 10.2 on Windows and Apple Safari, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to iTunes Store browsing, a different vulnerability than other CVEs listed in APPLE-SA-2011-03-02-1.
http://www.zerodayinitiative.com/advisories/ZDI-11-098
http://support.apple.com/kb/HT4566
http://support.apple.com/kb/HT4564
http://support.apple.com/kb/HT4554
http://lists.apple.com/archives/security-announce/2011/Mar/msg00000.html
http://lists.apple.com/archives/security-announce/2011//Mar/msg00004.html
http://lists.apple.com/archives/security-announce/2011//Mar/msg00003.html