Ubuntu Security Notice 1666-1 - It was discovered that Aptdaemon incorrectly validated PPA GPG keys when importing from a keyserver. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to install altered package repository GPG keys.
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Ubuntu Security Notice USN-1666-1
December 17, 2012
aptdaemon vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
Summary:
Aptdaemon could be tricked into installing arbitrary PPA GPG keys.
Software Description:
- aptdaemon: transaction based package management service
Details:
It was discovered that Aptdaemon incorrectly validated PPA GPG keys when
importing from a keyserver. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could be exploited to install altered
package repository GPG keys.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
aptdaemon 0.43+bzr805-0ubuntu7
Ubuntu 11.10:
aptdaemon 0.43+bzr697-0ubuntu1.3
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1666-1
CVE-2012-0962
Package Information:
https://launchpad.net/ubuntu/+source/aptdaemon/0.43+bzr805-0ubuntu7
https://launchpad.net/ubuntu/+source/aptdaemon/0.43+bzr697-0ubuntu1.3