CVE-2013-2777

sudo before 1.7.10p5 and 1.8.x before 1.8.6p6, when the tty_tickets option
is enabled, does not properly validate the controlling terminal device,
which allows local users with sudo permissions to hijack the authorization
of another terminal via vectors related to a session without a controlling
terminal device and connecting to the standard input, output, and error
file descriptors of another terminal. NOTE: this is one of three
closely-related vulnerabilities that were originally assigned
CVE-2013-1776, but they have been SPLIT because of different affected
versions.

Bugs

• <https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023&gt;
• <https://bugzilla.redhat.com/show_bug.cgi?id=916365&gt;

Notes