sudo: fix CVE-2019-14287
In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer
account can bypass certain policy blacklists and session PAM modules,
and can cause incorrect logging, by invoking sudo with a crafted user
ID. For example, this allows bypass of !root configuration, and USER=
logging, for a "sudo -u \#$((0xffffffff))" command.
Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
4e11cd561f2bdaa6807cf02ee7c9870881826308)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
