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AUSCERT External Security Bulletin Redistribution
USN-3968-1: Sudo vulnerabilities
7 May 2019
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
CVE Names: CVE-2017-1000368 CVE-2016-7076
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USN-3968-1: Sudo vulnerabilities
6 May 2019
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 16.04 LTS
Several security issues were fixed in Sudo.
o sudo - Provide limited super user privileges to specific users
Florian Weimer discovered that Sudo incorrectly handled the noexec restriction
when used with certain applications. A local attacker could possibly use this
issue to bypass configured restrictions and execute arbitrary commands.
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)
The problem can be corrected by updating your system to the following package
Ubuntu 16.04 LTS
sudo - 1.8.16-0ubuntu1.6
sudo-ldap - 1.8.16-0ubuntu1.6
To update your system, please follow these instructions: https://
In general, a standard system update will make all the necessary changes.
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