Opera before 9.23 allows remote attackers to execute arbitrary code via crafted Javascript that triggers a "virtual function call on an invalid pointer."

References

• https://nvd.nist.gov/vuln/detail/CVE-2007-4367
• https://exchange.xforce.ibmcloud.com/vulnerabilities/36039
• http://lists.opensuse.org/opensuse-security-announce/2007-08/msg00006.html
• http://secunia.com/advisories/26477
• http://secunia.com/advisories/26545
• http://secunia.com/advisories/26635
• http://security.gentoo.org/glsa/glsa-200708-17.xml
• http://www.opera.com/support/search/view/865/
• http://www.securityfocus.com/bid/25331
• http://www.securitytracker.com/id?1018572
• http://www.vupen.com/english/advisories/2007/2904