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Ubuntu 12.04 LTS: USN-1666-1 Critical Aptdaemon Flaw DoS

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Calendar Grey December 17, 2012
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A vulnerability in Aptdaemon found in Ubuntu may enable the installation of any arbitrary PPA GPG keys, heightening security concerns.
Aptdaemon could be tricked into installing arbitrary PPA GPG keys.

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.

Topics%20covered

Topics Covered

security advisory critical ubuntu package management man-in-the-middle aptdaemon GPG key exploit

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

https://ubuntu.com/security/notices/USN-1666-1

CVE-2012-0962

Severity
critical
Lowest
Low
Medium
High
Critical

December 17, 2012

Topics%20covered

Topics Covered

security advisory critical ubuntu package management man-in-the-middle aptdaemon GPG key exploit

Package Information

https://launchpad.net/ubuntu/+source/aptdaemon/0.43+bzr805-0ubuntu7
https://launchpad.net/ubuntu/+source/aptdaemon/0.43+bzr697-0ubuntu1.3

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