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List: freebsd-security
Subject: Re: Security breach or VM flaw? (security check output)
From: Eivind Eklund <eivind () FreeBSD ! ORG>
Date: 1999-01-28 11:00:26
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On Thu, Jan 28, 1999 at 12:17:30AM +0100, laurens van alphen wrote:
> Hiya folks,
>
> This mornin' i received this daily security check output:
> (of course, hostnames have been changes, dates/sizes have not)
>
> <host> setuid diffs:
> 40c40
> < -r-xr-s--- 1 bin kmem 49152 Jul 22 10:14:47 1998 /usr/bin/netstat
> ---
> > -r-xr-s--- 1 bin kmem 49152 Jan 28 02:30:23 1999 /usr/bin/netstat
>
> Is seems as if netstat has adopted the time at which it was executed.
That's exactly what has happened. It was a bug in the VM system,
where read only pages sometimes (very seldom) were marked as dirty. I
think it has been fixed in 2.2.8+.
Eivind.
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