A flaw was found in the implementation of transport.py in Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.

Upstream Issue:

https://github.com/paramiko/paramiko/issues/1175

Upstream Patch:

https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516

Ansible before versions 2.1.6.0, 2.2.3.0, 2.3.1.0, and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls, they could inject Unicode strings to be parsed by the jinja2 templating system, resulting in code execution. By default, the jinja2 templating language is now marked as 'unsafe' and is not evaluated.

A vulnerability in openvswitch was found. While parsing an OFPTQUEUEGETCONFIGREPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function ofputilpullqueuegetconfigreply10 in lib/ofp-util.c.

References:

https://mail.openvswitch.org/pipermail/ovs-dev/2017-May/332711.html