One such vulnerability was found in versions of Opera 7 and Opera 8 running on Linux, FreeBSD or Solaris software. The flaw could allow an attacker to remotely execute arbitrary shell commands on a user's computer by tricking him or her into clicking on a link to malicious Web site, according to a security advisory from Secunia. A command shell lets users enter text-based commands.
The security patch also is designed to address a flaw in Flash Player in versions of Opera 5 through 8, according to Secunia.
Last June, Opera issued a patch, the 8.01 update, toincluding some that could be exploited by phishers.