Ethereal 0.9.4 has been released to fix these issues. All versions up to and including 0.9.3 are vulnerable. Latest source is available here: http://www.ethereal.com/distribution/ethereal-0.9.4.tar.gz
We're currently in the process of doing a security errata for ethereal. Stay tuned and check www.redhat.com/errata for updates. Thanks, Read ya, Phil