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Red Hat Security Advisory

Synopsis: Critical: python-paramiko security update
Advisory ID: RHSA-2018:3347-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3347
Issue date: 2018-10-30
CVE Names: CVE-2018-1000805
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1. Summary:

An update for python-paramiko is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) – noarch
Red Hat Enterprise Linux Client Optional (v. 7) – noarch
Red Hat Enterprise Linux ComputeNode (v. 7) – noarch
Red Hat Enterprise Linux ComputeNode Optional (v. 7) – noarch
Red Hat Enterprise Linux Server (v. 7) – noarch
Red Hat Enterprise Linux Server Optional (v. 7) – noarch
Red Hat Enterprise Linux Workstation (v. 7) – noarch
Red Hat Enterprise Linux Workstation Optional (v. 7) – noarch
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) – noarch
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) – noarch

3. Description:

The python-paramiko package provides a Python module that implements the
SSH2 protocol for encrypted and authenticated connections to remote
machines. Unlike SSL, the SSH2 protocol does not require hierarchical
certificates signed by a powerful central authority. The protocol also
includes the ability to open arbitrary channels to remote services across
an encrypted tunnel.

Security Fix(es):

* python-paramiko: Authentication bypass in auth_handler.py
(CVE-2018-1000805)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1637263 – CVE-2018-1000805 python-paramiko: Authentication bypass in auth_handler.py

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
python-paramiko-2.1.1-9.el7.src.rpm

noarch:
python-paramiko-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

noarch:
python-paramiko-doc-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
python-paramiko-2.1.1-9.el7.src.rpm

noarch:
python-paramiko-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

noarch:
python-paramiko-doc-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
python-paramiko-2.1.1-9.el7.src.rpm

noarch:
python-paramiko-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
python-paramiko-2.1.1-9.el7.src.rpm

noarch:
python-paramiko-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

noarch:
python-paramiko-doc-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

noarch:
python-paramiko-doc-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
python-paramiko-2.1.1-9.el7.src.rpm

noarch:
python-paramiko-2.1.1-9.el7.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

noarch:
python-paramiko-doc-2.1.1-9.el7.noarch.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-1000805
https://access.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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