Ubuntu Security Notice 2246-1 - Jakub Wilk discovered that APT did not correctly validate signatures when downloading source packages. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered source packages.
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Ubuntu Security Notice USN-2246-1
June 17, 2014
apt vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary:
An attacker could trick APT into installing altered source packages.
Software Description:
- apt: Advanced front-end for dpkg
Details:
Jakub Wilk discovered that APT did not correctly validate signatures when
downloading source packages. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to install
altered source packages.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
apt 1.0.1ubuntu2.1
Ubuntu 13.10:
apt 0.9.9.1~ubuntu3.2
Ubuntu 12.04 LTS:
apt 0.8.16~exp12ubuntu10.17
Ubuntu 10.04 LTS:
apt 0.7.25.3ubuntu9.15
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2246-1
CVE-2014-0478
Package Information:
https://launchpad.net/ubuntu/+source/apt/1.0.1ubuntu2.1
https://launchpad.net/ubuntu/+source/apt/0.9.9.1~ubuntu3.2
https://launchpad.net/ubuntu/+source/apt/0.8.16~exp12ubuntu10.17
https://launchpad.net/ubuntu/+source/apt/0.7.25.3ubuntu9.15