From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) M$-Free/Gecko/20010110 Netscape6/6.5 Description of problem: The uml_net binary that installs as part of the kernel-utils package in redhat 8 is setuid root. It can be crashed with a negative version number (doesn't look exploitable to me), and can be used by local (unpriveleged) users to up/down certain interfaces, add and remove arp entries and routes, and put interfaces in and out of promiscuous mode. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Check eth0 is not in promisc mode 2. As a local user try 'uml_net 4 ethertap eth0 crap promisc' 3. Re-check step 1 Actual Results: IF goes into promisc mode Expected Results: Permission denied? Additional info:
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2003-056.html