Launchpad.net

CVE 2010-1782

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; allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to the rendering of an inline element.

See the CVE page on Mitre.org for more details.