Security Information / 2017 / Security Information -- DSA-3867-1 sudo

Debian Security Advisory

DSA-3867-1 sudo -- security update

Date Reported:

30 May 2017

Affected Packages:

sudo

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 863731.
In Mitre's CVE dictionary: CVE-2017-1000367.

More information:

The Qualys Security team discovered that sudo, a program designed to provide limited super user privileges to specific users, does not properly parse "/proc/[pid]/stat" to read the device number of the tty from field 7 (tty_nr). A sudoers user can take advantage of this flaw on an SELinux-enabled system to obtain full root privileges.

For the stable distribution (jessie), this problem has been fixed in version 1.8.10p3-1+deb8u4.

We recommend that you upgrade your sudo packages.