OSEC

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openssh buffer_append_space vulnerability

From: Joseph Blade (jblade27comcast.net)
Date: Fri Jun 11 2004 - 08:30:00 CDT


Good Morning To All,

Long time listener, first time caller.

Has anyone in the community seen any progress in the
buffer_append_space() vulnerability, which sets the buffer's
allocated int when it isn't allocated?

The last process that I used last September was to use data compression
to crash buffer_append(). When this was done, the data would cause a
crash before the space was allocated. At that point I had "deer in the
headlights"

If anyone has any ideas or knows of a poc in regards to this
vulnerability, I would greatly appreciate it.

Regards,

jb