Multiple unspecified vulnerabilities in Opera 8.50 on Linux and Windows have unknown impact and attack vectors, related to (1) " handling of must-revalidate cache directive for HTTPS pages" or (2) a "display issue with cookie comment encoding."Referenceshttp://www.vupen.com/english/advisories/2005/1789http://www.opera.com/docs/changelogs/windows/850/http://www.opera.com/docs/changelogs/linux/850/http://secunia.com/advisories/16645
