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+++ This bug was initially created as a clone of Bug #678324 +++ Description of problem: The sockaddr structure in telnetd.c main() is too small to hold an IPV6 address when converted to string form. This corrupt value is then transferred to utmp to create a permanent bad record. Version-Release number of selected component (if applicable): telnet-server-0.17-46.el6 How reproducible: Always. Steps to Reproduce: 1. telnet to IPV6 machine with no DNS record for IP 2. echo $REMOTEHOST 3. Actual results: $ telnet fd00:6969:6969:6969::91 Trying fd00:6969:6969:6969::91... Connected to fd00:6969:6969:6969::91. Escape character is '^]'. login: test Password: Last login: Thu Feb 17 15:26:32 from fd00:6969:6969:6969:37:a6f5:e045:84bf%15237108 [test@host-91 ~]$ echo $REMOTEHOST fd00:6969:6969:6969:82:59c7:70af:9dbf%6078452 Expected results: $ telnet fd00:6969:6969:6969::91 Trying fd00:6969:6969:6969::91... Connected to fd00:6969:6969:6969::91. Escape character is '^]'. login: test Password: Last login: Thu Feb 17 15:28:54 from fd00:6969:6969:6969:82:59c7:70af:9dbf%6078452 [test@host-91 ~]$ echo $REMOTEHOST fd00:6969:6969:6969::12 Additional info: --- Additional comment from mpoole on 2011-02-17 10:43:19 EST --- Created attachment 479354 [details] patch to using sockadd_storage structure for connection details
The patch is OK, thanks for it.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-1035.html