WebKit: multiple vulnerabilities in WebKitGTK

WebKit in Apple Safari before 5.0.1 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.1 on Mac OS X 10.4; and webkitgtk before 1.2.6; accesses uninitialized memory during processing of the 1 :first-letter and 2 :first-line pseudo-elements in an SVG text element, which allows remote...