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Red Hat Security Advisory 2018-1125-01

Red Hat Security Advisory 2018-1125-01
Posted Apr 12, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-1125-01 - 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. Issues addressed include a bypass vulnerability.

tags | advisory, remote, arbitrary, protocol, python, bypass
systems | linux, redhat
advisories | CVE-2018-7750
MD5 | 54614beb604eb237c15e09e7ad7f4c48

Red Hat Security Advisory 2018-1125-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Critical: python-paramiko security update
Advisory ID: RHSA-2018:1125-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1125
Issue date: 2018-04-12
CVE Names: CVE-2018-7750
=====================================================================

1. Summary:

An update for python-paramiko is now available for Red Hat Enterprise Linux
6.4 Advanced Update Support, Red Hat Enterprise Linux 6.5 Advanced Update
Support, Red Hat Enterprise Linux 6.6 Advanced Update Support, Red Hat
Enterprise Linux 6.6 Telco Extended Update Support, and Red Hat Enterprise
Linux 6.7 Extended Update Support.

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 HPC Node EUS (v. 6.7) - noarch
Red Hat Enterprise Linux Server AUS (v. 6.4) - noarch
Red Hat Enterprise Linux Server AUS (v. 6.5) - noarch
Red Hat Enterprise Linux Server AUS (v. 6.6) - noarch
Red Hat Enterprise Linux Server EUS (v. 6.7) - noarch
Red Hat Enterprise Linux Server TUS (v. 6.6) - 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 transport.py (CVE-2018-7750)

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/):

1557130 - CVE-2018-7750 python-paramiko: Authentication bypass in transport.py

6. Package List:

Red Hat Enterprise Linux HPC Node EUS (v. 6.7):

Source:
python-paramiko-1.7.5-4.el6_7.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_7.noarch.rpm

Red Hat Enterprise Linux Server AUS (v. 6.4):

Source:
python-paramiko-1.7.5-4.el6_4.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_4.noarch.rpm

Red Hat Enterprise Linux Server AUS (v. 6.5):

Source:
python-paramiko-1.7.5-4.el6_5.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_5.noarch.rpm

Red Hat Enterprise Linux Server AUS (v. 6.6):

Source:
python-paramiko-1.7.5-4.el6_6.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_6.noarch.rpm

Red Hat Enterprise Linux Server TUS (v. 6.6):

Source:
python-paramiko-1.7.5-4.el6_6.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_6.noarch.rpm

Red Hat Enterprise Linux Server EUS (v. 6.7):

Source:
python-paramiko-1.7.5-4.el6_7.src.rpm

noarch:
python-paramiko-1.7.5-4.el6_7.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-2018-7750
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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