WebCore in Apple Mac OS X 10.3.9 and 10.4 through 10.4.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted HTML that triggers a “memory management error” in WebKit, possibly due to a buffer overflow, as originally reported for the KHTMLParser::popOneBlock function in Apple Safari 2.0.4 using Javascript that changes document.body.innerHTML within a DIV tag.
browserfun.blogspot.com/2006/07/mobb-31-safari-khtmlparserpoponeblock.html
lists.apple.com/archives/security-announce/2006/Sep/msg00002.html
secunia.com/advisories/21271
secunia.com/advisories/22187
securitytracker.com/id?1016957
www.osvdb.org/27534
www.securityfocus.com/bid/19250
www.vupen.com/english/advisories/2006/3069
www.vupen.com/english/advisories/2006/3852
exchange.xforce.ibmcloud.com/vulnerabilities/28081