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USN-3968-2: Sudo vulnerability

29 May 2019

Sudo could be made to overwrite files if it received a specially crafted input.



  • sudo - Provide limited super user privileges to specific users


USN-3968-1 fixed a vulnerability in Sudo. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Sudo did not properly parse the contents of
/proc/[pid]/stat when attempting to determine its controlling tty. A local
attacker in some configurations could possibly use this to overwrite any
file on the filesystem, bypassing intended permissions. (CVE-2017-1000368)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

In general, a standard system update will make all the necessary changes.


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