The XML parser in Mozilla Firefox before 1.5.0.1 and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly read sensitive data via unknown attack vectors that trigger an out-of-bounds read.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A677
https://exchange.xforce.ibmcloud.com/vulnerabilities/24436
http://www.vupen.com/english/advisories/2006/3749
http://www.vupen.com/english/advisories/2006/0413
http://www.securityfocus.com/archive/1/446657/100/200/threaded
http://www.mozilla.org/security/announce/2006/mfsa2006-07.html
http://securitytracker.com/id?1015570
http://secunia.com/advisories/22065