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CVE Request -- dtach: Memory portion (random stack data) disclosure to the client by unclean client disconnect


From: Jan Lieskovsky <jlieskov () redhat com>
Date: Wed, 27 Jun 2012 11:58:24 +0200

Hello Kurt, Steve, vendors,

a portion of memory (random stack data) disclosure flaw was found in the way dtach, a simple program emulating the detach feature of screen, performed client connection termination under certain circumstances. A remote attacker could use this flaw to potentially obtain sensitive information by issuing a specially-crafted dtach client connection close request.

Upstream ticket:
[1] http://sourceforge.net/tracker/?func=detail&aid=3517812&group_id=36489&atid=417357

Preliminary proposed patch:
[2] http://sourceforge.net/tracker/download.php?group_id=36489&atid=417357&file_id=441195&aid=3517812

References:
[3] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=625302
[4] https://bugzilla.redhat.com/show_bug.cgi?id=812551
[5] https://bugzilla.redhat.com/show_bug.cgi?id=835849

Could you allocate a CVE id for this issue?

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team


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