openssh: Backport CVE-2015-5600 fix
only query each keyboard-interactive device once per
authentication request regardless of how many times it is listed
Source:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth2-chall.c?f=h#rev1.43
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth2-chall.c.diff?r2=1.43&r1=1.42&f=u
Bug report:
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-5600
https://bugzilla.redhat.com/show_bug.cgi?id=
1245969
Testing:
Built in Fido and installed to x86_64 test system.
Verified both 'keyboard-interactive' and 'publickey' logon works with
root and a regular user from an openssh 7.1p1-1 client on Arch.
Signed-off-by: Haris Okanovic <haris.okanovic@ni.com>
Reviewed-by: Rich Tollerton <rich.tollerton@ni.com>
Reviewed-by: Ken Sharp <ken.sharp@ni.com>
Natinst-ReviewBoard-ID: 115602
Natinst-CAR-ID: 541263
Signed-off-by: Joshua Lock <joshua.lock@collabora.co.uk>
