Ubuntu Security Notice (C) 2012-2016 Canonical, Inc. / NASL script (C) 2012-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing a security-related patch.
Georgi Guninski discovered that APT did not properly validate imported
keyrings via apt-key net-update. USN-1475-1 added additional
verification for imported keyrings, but it was insufficient. If a
remote attacker were able to perform a man-in-the-middle attack, this
flaw could potentially be used to install altered packages. This
update corrects the issue by disabling the net-update option
completely. A future update will re-enable the option with corrected
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected apt package.
Risk factor :
Low / CVSS Base Score : 2.6