The tvb_get_nstringz0 function in Ethereal 0.9.12 and earlier does not properly handle a zero-length buffer size, with unknown consequences.Referencesftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-030.0.txthttp://www.redhat.com/support/errata/RHSA-2003-077.htmlhttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000662http://www.debian.org/security/2003/dsa-324https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A101http://secunia.com/advisories/9007http://www.ethereal.com/appnotes/enpa-sa-00010.html