Common Vulnerabilities and Exposures assigned an identifier CVE-2013-2777 to the following vulnerability: Name: CVE-2013-2777 URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2777 Assigned: 20130408 Reference: http://www.openwall.com/lists/oss-security/2013/02/27/31 Reference: https://bugzilla.redhat.com/show_bug.cgi?id=916365 Reference: http://www.sudo.ws/repos/sudo/rev/2f3225a2a4a4 Reference: http://www.sudo.ws/repos/sudo/rev/bfa23f089bba Reference: http://www.sudo.ws/sudo/alerts/tty_tickets.html Reference: http://www.securityfocus.com/bid/58207 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 a 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.
Looking at the upstream commits, it seems that this flaw exists because of incomplete/insufficient fix applied for the CVE-2013-1776 flaw. Since the patch for CVE-2013-1776 was not backported to Red Hat Enterprise Linux 5, this flaw does not affect it
(In reply to Huzaifa S. Sidhpurwala from comment #2) > Looking at the upstream commits, it seems that this flaw exists because of > incomplete/insufficient fix applied for the CVE-2013-1776 flaw. Hence this CVE affects versions starting with 1.7.10 and 1.8.5 and is corrected in versions 1.7.10p5 and 1.8.6p6.
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2013:1701 https://rhn.redhat.com/errata/RHSA-2013-1701.html