Upgrading Apache to 2.2.23 on ubuntu 12.04 LTS
Solution 1:
According to the package search for apache2 there is no package greater than 2.2.22 in the Ubuntu repos.
However if you look at the specific vulnerability it is 'just' a local exploitable vulnerability which leads unauthorized disclosure of information. So it might be acceptable to wait for a fix. More information about the vulnerability can be found at the entry CVE-2012-0883.