WebKit in Apple Safari before 4.0 does not properly initialize memory for Attr DOM objects, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted HTML document.
Exploitability
AV:NAC:MAu:NImpact
C:CI:CA:C9.3/AV:N/AC:M/Au:N/C:C/I:C/A:C