Ubuntu Security Notice 3746-1 - It was discovered that APT incorrectly handled the mirror method. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages in environments configured to use mirror:// entries.
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Ubuntu Security Notice USN-3746-1
August 20, 2018
apt vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary:
An attacker could trick APT into installing altered packages.
Software Description:
- apt: Advanced front-end for dpkg
Details:
It was discovered that APT incorrectly handled the mirror method
(mirror://). If a remote attacker were able to perform a man-in-the-middle
attack, this flaw could potentially be used to install altered packages in
environments configured to use mirror:// entries.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
apt 1.6.3ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3746-1
CVE-2018-0501
Package Information:
https://launchpad.net/ubuntu/+source/apt/1.6.3ubuntu0.1