CVE-2013-2776

sudo 1.3.5 through 1.7.10p5 and 1.8.0 through 1.8.6p6, when running on
systems without /proc or the sysctl function with the tty_tickets option
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 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