Marc Stern reported an off-by-one overflow in the mod_ssl CRL verification callback. In order to exploit this issue the Apache server would need to be configured to use a malicious certificate revocation list (CRL) (CAN-2005-1268). http://issues.apache.org/bugzilla/show_bug.cgi?id=35081 Mitigation: by default the Apache web server is not configured to use any certificate revocation lists. If Apache has been configured to use a certificate revocation list, that list would have to be malicious in order to cause the overflow. As the overflow is a single null byte stack overflow this would have minimal effect on RHEL3 or RHEL4, most likely just causing the current child process to die, and be replaced when required. Also affects RHEL3
An advisory 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-2005-582.html