Comment 1 for bug 713002

Fixed in newer releases, as you say. I suspect that this may be the upstream commit responsible for fixing it, which would mean that it was fixed in OpenSSH 4.9p1:

  http://bazaar.launchpad.net/~vcs-imports/openssh/main/revision/5290

I've applied this patch to version 1:4.7p1-8ubuntu2~ppa1 in this archive:

  https://launchpad.net/~cjwatson/+archive/openssh

Could you please try it out and report whether it fixes this problem?