package rkhunter
severity 560157
thanks

Hi Maxim,

Le mercredi 09 décembre 2009 à 11:34 +0100, maxim kammerer a écrit :
> Package: rkhunter
> Version: 1.3.2
> Severity: important
> 
> 
> rkhunter is complaining about some packages installed on my system 
> (Lenny). I consider them security relevant and was quite a bit spooked
> 
> upon having them reported as 'out of date' despite my running updates 
> against s.d.o every day. apt-cache also reports them as up-to-date.

Applications are actually outdated, ie. new versions were released
upstream.

> Here's an excerpt from rkhunter's daily report:
> 
> %< snip
> 
> Warning: Application 'exim', version '4.69', is out of date, and 
> possibly a security risk.
> Warning: Application 'gpg', version '1.4.9', is out of date, and 
> possibly a security risk.
> Warning: Application 'openssl', version '0.9.8g', is out of date, and 
> possibly a security risk.
> Warning: Application 'php', version '5.2.6', is out of date, and 
> possibly a security risk.
> Warning: Application 'sshd', version '5.1p1', is out of date, and 
> possibly a security risk.
> 
> %y eosnip
> 
> Probably, rkhunter doesn't know about patches backported in lenny and 
> such and has been given a database which doesn't quite correspond with
> 
> debian lenny.. Note that rkhunter advises against binaries 
> rather than packages, which supports the above thesis. 

You are right. However rkhunter does only state that a new version of an
application has been released, and refers to a *possible* security risk.

> I trust the debian security team more than rkhunter, still it is a 
> bit unsettling.

You are right to trust the Debian Security Team.
As stated, rkhunter outputs are warnings only, do not overestimate them.

You can use the APP_WHITELIST option to whitelist application versions
you trust.

I think what happened is that upstream released version 1.3.6 very
recently, and database were updated (either automatically through the
weekly cronjob if you use it, or by hand running rkhunter --update)

I do not consider this as a bug in rkhunter, which does its job, I will
hence close this bug if you don't object (for now, I lower its priority
to normal).

Cheers,
Julien




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