One of the machines I'm responsible for is a 6.0.7 (squeeze) VM host and we have just had an abuse report from our hosting company with this being exploited. We were planning to upgrade to wheezy in the near term although at the moment it seems that is also vulnerable to this exploit.
I'll post our firewall work around once we have it in place. If there is any help we can offer in testing then please let me know. -- Alex, homepage: http://www.bennee.com/~alex/ Meekness: Uncommon patience in planning a revenge that is worth while. -- Ambrose Bierce
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