Use-after-free vulnerability in the garbage-collection
implementation in WebCore in WebKit in Apple Safari before 4.0
allows remote attackers to execute arbitrary code or cause a denial
of service (heap corruption and application crash) via an SVG
animation element, related to SVG set objects, SVG marker elements,
the targetElement attribute, and unspecified "caches."
Presumably all affected versions are gone from tree. Closing as discussed with keytoaster.