Multiple heap-based buffer overflows in the Perl Compatible Regular Expressions (PCRE) library in the JavaScript engine in WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, allow remote attackers to execute arbitrary code via certain JavaScript regular expressions. NOTE: this issue was originally reported only for MobileSafari on the iPhone. NOTE: it is not clear whether this stems from an issue in the original distribution of PCRE, which might already have a separate CVE identifier.

Race condition in Apple Safari 3 Beta before 3.0.2 on Mac OS X, Windows XP, Windows Vista, and iPhone before 1.0.1, allows remote attackers to bypass the JavaScript security model and modify pages outside of the security domain and conduct cross-site scripting (XSS) attacks via vectors related to page updating and HTTP redirects.