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[[Linux-announce] ] Local privilege escalation

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  • From: Kai Kaminski <kai.kaminski AT>
  • To: "linux-announce AT" <linux-announce AT>
  • Subject: [[Linux-announce] ] Local privilege escalation
  • Date: Mon, 27 Feb 2017 13:49:16 +0100


last week a new vulnerability was published (see below), which allows
local users to gain root privilege. We don't have the new kernel in the
repository yet, but there is a straightforward mitigation, assuming that
the module isn't in use yet. It is documented by Red Hat here:

The short version is:

echo "install dccp /bin/true">> /etc/modprobe.d/disable-dccp.conf

I think this is mostly an issue on servers where unprivileged users can
log in. I will implement this on llc*

Best regards,


  • [[Linux-announce] ] Local privilege escalation, Kai Kaminski, 02/27/2017

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