CVE-2009-1358

apt-get in apt before 0.7.21 does not check for the correct error code from
gpgv, which causes apt to treat a repository as valid even when it has been
signed with a key that has been revoked or expired, which might allow
remote attackers to trick apt into installing malicious repositories.

Bugs

• <http://launchpad.net/bugs/356012&gt;