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Date: Fri, 29 Apr 2011 13:42:08 -0600
From: Vincent Danen <>
Subject: vulnerability in sssd 1.5.0+ (CVE-2011-1758)

Hello all.

Anyone shipping sssd 1.5.0 or higher will want to be aware of a flaw
that was found in how it handled cached passwords when renewal kerberos
tickets is enabled (this is a new feature in 1.5.0).  Due to a bug, the
cached password was overwritten with a (moderately) predictable
filename, which could allow a user to authenticate as someone else if
they knew the name of the cache file (under some pretty specific

We've assigned the name CVE-2011-1758 to this issue and it is now fixed


Vincent Danen / Red Hat Security Response Team 

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