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Date: Tue, 08 Nov 2011 09:44:38 -0700
From: Kurt Seifried <>
CC: Sebastian Krahmer <>
Subject: Re: potential OpenPAM vulnerability

On 11/08/2011 08:56 AM, Sebastian Krahmer wrote:
> Hi,
> OpenPAM, until recently, was not filtering the service argument of
> pam_start() invocations. This can lead to a root compromise.
> Note that Linux-PAM is entirely different as forbids anything with '/'
> inside.
> Please see 
> for more discussion and PoC.
> This most likely affects FreeBSD and Solaris via the kcheckpass
> vector.
> regards,
> Sebastian
Please use CVE-2011-4122 for this issue.


-Kurt Seifried / Red Hat Security Response Team

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