However the security alerts tell you the name of the *source* package which needs to be upgraded. Normally this isn't too much of a problem, I go to the DSA web page, find the names of the effected binary packages and "apt-get install ...".

With the recent XFree86 security update there were so many packages to check that it was frustrating to cut and paste the individual names of the packages.

So my question is ...

• From the command line, how do you find all the currently installed packages which have the "Source: xfree86" header?

This has to be possible but I haven't managed to find anything that works.

Thanks!
Adam.