Safari 3.1.2 for Mac OS X 10.4.11 patches a WebKit vulnerability.
Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution
A memory corruption issue exists in WebKit’s handling of JavaScript arrays. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue through improved bounds checking. This issue is addressed in Safari v3.1.2 for Windows XP or Vista, and systems running Mac OS X v10.5.4. Credit to James Urquhart for reporting this issue.