Icecast before 2.4.0 does not change the supplementary group privileges when <changeowner> is configured, which allows local users to gain privileges via unspecified vectors.Referenceshttp://seclists.org/oss-sec/2014/q4/794https://bugzilla.redhat.com/show_bug.cgi?id=1168146https://trac.xiph.org/changeset/19137/http://icecast.org/news/icecast-release-2_4_0/http://seclists.org/oss-sec/2014/q4/802http://lists.opensuse.org/opensuse-updates/2014-12/msg00037.html
