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Date: Thu, 02 Jun 2011 19:23:14 +0200
From: Jan Lieskovsky <>
To: "Steven M. Christey" <>
CC: oss-security <>,
        Russell Coker <>, Daniel Ruoso <>
Subject: CVE request -- coreutils -- tty hijacking possible in "su" via TIOCSTI

Hello Josh, Steve, vendors,

   based on Debian BTS report:
       (first CVE-2011-XXYY required for Debian case)

looked more into original report:

and the first paragraph of [2] suggests:
"When starting a program via "su - user -c program" the user session
can escape to the parent session by using the TIOCSTI ioctl to push
characters into the input buffer.  This allows for example a non-root
session to push "chmod 666 /etc/shadow" or similarly bad commands into
the input buffer such  that after the end of the session they are

this should get a CVE-2005-YYZZ CVE id.

Could you allocate these?

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

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