During an audit of the CVS sources, Stefan Esser of e-matters discovered an exploitable double-free bug in the CVS server. On servers which are configured to allow anonymous read-only access, this bug could be used by anonymous users to gain write privileges and execute arbitrary commands on the server.
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-2003-013.html