Integer overflow in the CFDataReplaceBytes function in the CFData API in CoreFoundation in Apple Mac OS X before 10.5.3 allows context-dependent attackers to execute arbitrary code or cause a denial of service (crash) via an invalid length argument, which triggers a heap-based buffer overflow.

Apple Filing Protocol (AFP) Server in Apple Mac OS X before 10.5.3 does not verify that requested files and directories are inside shared folders, which allows remote attackers to read arbitrary files via unspecified AFP traffic.

Integer overflow in the PCRE regular expression compiler (JavaScriptCore/pcre/pcre_compile.cpp) in Apple WebKit, as used in Safari before 3.1.1, allows remote attackers to execute arbitrary code via a regular expression with large, nested repetition counts, which triggers a heap-based buffer overflow.

Cross-site scripting (XSS) vulnerability in Apple WebKit, as used in Safari before 3.1.1, allows remote attackers to inject arbitrary web script or HTML via a crafted URL with a colon in the hostname portion.

Apple Safari before 3.1.1, when running on Windows XP or Vista, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a file download with a crafted file name, which triggers memory corruption.