openssh: CVE-2011-4327

openssh: CVE-2011-4327

A security flaw was found in the way ssh-keysign,
a ssh helper program for host based authentication,
attempted to retrieve enough entropy information on configurations that
lacked a built-in entropy pool in OpenSSL (a ssh-rand-helper program would
be executed to retrieve the entropy from the system environment).
A local attacker could use this flaw to obtain unauthorized access to host keys
via ptrace(2) process trace attached to the 'ssh-rand-helper' program.

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4327
http://www.openssh.com/txt/portable-keysign-rand-helper.adv

[YOCTO #3493]

(From OE-Core rev: bdce08215396e5ab99ada5fa0f62c3b002a44582)

Signed-off-by: Li Wang <li.wang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>