Opera Multiple Vulnerabilities

Multiple vulnerabilities have been reported in Opera, where one has an unknown impact and others can be exploited by malicious people to bypass certain security features, disclose potentially sensitive information, and hijack a user's session.

1. An unspecified error exists. No further information is currently available.
2. An error when applying domain restrictions to handle cookies and scripting context within some top level domains can be exploited by other sites in that top level domain to access cookies or communicate with scripts.
3. A design error exists within the implementation of SSL 3.0 and TLS 1.0 protocols.
4. An error when handling the JavaScript "in" operator while executing scripts can be exploited to bypass the cross-domain policy restriction and check for the existence of variables on other sites.