Scientific Linux: SLSA-2014:0103-1 Moderate: libvirt Remote Code Issues

Date: Tue, 28 Jan 2014 19:30:48 +0000
Reply-To: scientific-linux-users@
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Moderate: libvirt on SL6.x i386/x86_64
MIME-Version: 1.0

Synopsis: Moderate: libvirt security and bug fix update
Advisory ID: SLSA-2014:0103-1
Issue Date: 2014-01-28
CVE Numbers: CVE-2013-6458
 CVE-2014-1447
--

A use-after-free flaw was found in the way several libvirt block APIs
handled domain jobs. A remote attacker able to establish a read-only
connection to libvirtd could use this flaw to crash libvirtd or,
potentially, execute arbitrary code with the privileges of the libvirtd
process (usually root). (CVE-2013-6458)

A race condition was found in the way libvirtd handled keepalive
initialization requests when the connection was closed prior to
establishing connection credentials. An attacker able to establish a read-
only connection to libvirtd could use this flaw to crash libvirtd,
resulting in a denial of service. (CVE-2014-1447)

This update also fixes the following bug:

* A race condition was possible between a thread starting a virtual
machine with a guest agent configured (regular start-up or while
migrating) and a thread that was killing the VM process (or the process
crashing). The race could cause the monitor object to be freed by the
thread that killed the VM process, which was later accessed by the thread
that was attempting to start the VM, resulting in a crash. This issue was
fixed by checking the state of the VM after the attempted connection to
the guest agent; if the VM in the meantime exited, no other operations are
attempted.

After installing the updated packages, libvirtd will be restarted
automatically.
--

SL6
 x86_64
 libvirt-0.10.2-29.el6_5.3.x86_64.rpm
 libvirt-client-0.10.2-29.el6_5.3.i686.rpm
 libvirt-client-0.10.2-29.el6_5.3.x86_64.rpm
 libvirt-debuginfo-0.10.2-29.el6_5.3.i686.rpm
 libvirt-debuginfo-0.10.2-29.el6_5.3.x86_64.rpm
 libvirt-python-0.10.2-29.el6_5.3.x86_64.rpm
 libvirt-devel-0.10.2-29.el6_5.3.i686.rpm
 libvirt-devel-0.10.2-29.el6_5.3.x86_64.rpm
 libvirt-lock-sanlock-0.10.2-29.el6_5.3.x86_64.rpm
 i386
 libvirt-0.10.2-29.el6_5.3.i686.rpm
 libvirt-client-0.10.2-29.el6_5.3.i686.rpm
 libvirt-debuginfo-0.10.2-29.el6_5.3.i686.rpm
 libvirt-python-0.10.2-29.el6_5.3.i686.rpm
 libvirt-devel-0.10.2-29.el6_5.3.i686.rpm

- Scientific Linux Development Team